HACKBERRY
Celtis occidentalis--Hackberry
Celtis Insect Problems
Celtis Disease Problems
HACKBERRY NIPPLE GALL
Celtis Insect Problems
HAIL DAMAGE
Hail Damage
HAIRY MELIC
Melica ciliata--Hairy Melic
HAIRY PENSTEMON
Penstemon hirsutus--Hairy Penstemon
HAKONECHLOA MACRA
Hakonechloa macra
HALESIA
Halesia Disease Problems
HALESIA CAROLINA
Halesia tetraptera--Carolina Silverbell
HALESIA DIPTERA
Halesia diptera--Two-winged Silverbell
HALESIA MONTICOLA
Halesia monticola--Mountain Silverbell
HALESIA TETRAPTERA
Halesia tetraptera--Carolina Silverbell
HAMAMELIS
Hamamelis Insect Problems
Hamamelis Disease Problems
HAMAMELIS JAPONICA
Hamamelis japonica--Japanese Witchhazel
HAMAMELIS MOLLIS
Hamamelis mollis--Chinese Witchhazel
HAMAMELIS VERNALIS
Hamamelis vernalis--Vernal Witchhazel
HAMAMELIS VIRGINIANA
Hamamelis virginiana--Common Witchhazel
HAMAMELIS X INTERMEDIA
Hamamelis x intermedia
HANGING CONTAINERS
Hanging Containers
HANKOW WILLOW
Salix matsudana--Hankow Willow
HARD ROT
Gladiolus Disease Problems
HARDY BULBS
Allium aflatunense--Purple Allium
Allium caeruleum--Blue Globe Onion
Allium giganteum--Giant Allium
Allium moly--Golden Garlic
Allium oreophilum--Alpine Rosy Bells
Allium roseum grandiflorum--Bigflower Rosy Onion
Allium schoenoprasum--Chives
Allium senescens--German Garlic
Anemone apennina--Apennine Anemone
Anemone blanda--Greek Anemone
Anemone x fulgens--Flame Anemone
Anemone nemorosa--Wood Anemone
Brodiaea laxa--Grassnut
Bulbocodium vernum--Spring Meadow Saffron
Camassia cusickii--Cusick Camass
Camassia quamash (esculenta)--Camass
Chiondoxa forbesii
Chiondoxa luciliae--Glory of the Snow
Colchicum autumnale--Autumn Crocus
Crocus spp--Crocus
Cyclamen coum
Cyclamen hederifolium--Neapolitan Cyclamen
Eranthus hyemalis--Winter Aconite
Eremerus spp.--Fox-tail Lily
Erythronium americanum--Trout Lily
Fritillaria imperialis--Crown Imperial
Fritillaria meleagris--Checkered Lily
Galanthus elwesii--Giant Snowdrop
Galanthus nivalis--Common Snowdrop
Gladiolus byzantinus--Hardy Gladiolus
Hyacinthoides hispanicus--Spanish Bluebell
Hyacinthoides non-scriptus--English Bluebell
Hyacinthus x orientalis--Hyacinth
Ipheion uniflorum--Spring Starflower
Iris reticulata--Reticulate Iris
Iris xiphium--Dutch Iris
Leucojum aestivum--Summer Snowflake
Lilium--Lily
Lycoris squamigera--Magic Lily
Muscari spp.--Grape Hyacinth
Narcissus bulbocodium--Hoop-petticoat Daffodil
Narcissus hybrids--Daffodil
Narcissus jonquilla--Jonquil
Narcissus x tazetta--Tazetta Daffodil
Narcissus triandrus--Angel's Tears
Ornithogalum umbellatum--Star-of-Bethlehem
Oxalis adenophylla--Chilean Wood Sorrel
Puschkinia scilloides var. libanotica
Scilla siberica--Siberian Squill
Tulipa spp.--Tulip
Selecting Hardy Bulbs
Planting Hardy Bulbs
Watering Hardy Bulbs
Mulching Hardy Bulbs
Fertilizing Hardy Bulbs
Dividing Hardy Bulbs
Hardy Bulb Blossom and Leaf Removal
HARDY GLADIOLUS
Gladiolus byzantinus--Hardy Gladiolus
HARDY GLOXINIA
Incarvillea delaveyi--Hardy Gloxinia
HARDY PRICKLY PEAR CACTUS
Opuntia humifusa--Hardy Prickly Pear Cactus
HARDY RUBBER TREE
Eucommia ulmoides--Hardy Rubber Tree
HARE'S-TAIL GRASS
Lagurus ovatus--Hare's-tail Grass
HARLEQUIN GLORYBOWER
Clerodendrum trichotomum--Harlequin Glorybower
HAWTHORN LACE BUG
Cotoneaster Insect Problems
HAWTHORN LEAF BLIGHT
Hawthorn Leaf Blight
HAWTHORNS
Crataegus ambigua--Russian Hawthorn
Crataegus arnoldiana--Arnold Hawthorn
Crataegus coccinoides--Kansas Hawthorn
Crataegus crus-galli--Cockspur Hawthorn
Crataegus laevigata--English Hawthorn
Crataegus x lavelli--Lavelle Hawthorn
Crataegus mollis--Downy Hawthorn
Crataegus monogyna--Singleseed Hawthorn
Crataegus x mordenensis
Crataegus phaenopyrum--Washington Hawthorn
Crataegus pinnatifida
Crataegus pruinosa--Frosted Hawthorn
Crataegus punctata--Dotted Hawthorn
Crataegus succulenta--Fleshy Hawthorn
Crataegus viridis--Green Hawthorn
Crataegus Insect Problems
HAY-SCENTED FERN
Dennstaedtia punctiloba--Hay-scented Fern
HEARTLEAF BERGENIA
Bergenia cordifolia--Heartleaf Bergenia
HEATHERS
Calluna vulgaris--Scotch Heather
HEATHS
Erica carnea--Spring Heath
Erica cinerea--Gray Heath
Erica x darleyensis--Darley Heath
Erica tetralix--Cross-leaved Heath
Erica vagans--Cornish Heath
HEAVENLY BAMBOO
Nandina domestica--Heavenly Bamboo
HEDERA
Hedera Insect Problems - Indoors
Hedera Disease Problems - Indoors
HEDERA HELIX
Hedera helix--English Ivy, Indoors
Hedera helix--English Ivy, Outdoors
HEDGE COTONEASTER
Cotoneaster lucidus--Hedge Cotoneaster
HEDGE MAPLE
Acer campestre--Hedge Maple
HEDGES
Uses of Shrubs
Pruning Hedges Or Screen Plants
HELENIUM AUTUMNALE
Helenium autumnale--Common Sneezeweed
HELIANTHEMUM
Helianthemum Disease Problems
HELIANTHEMUM NUMMULARIUM
Helianthemum nummularium--Common Sun Rose
HELIANTHUS ANNUUS
Helianthus annuus--Sunflower
HELIANTHUS GROSSE-SERRATUS
Helianthus grosse-serratus--Sawtooth Sunflower
HELIANTHUS X MULTIFLORUS
Helianthus x multiflorus--Many-flowered Sunflower
HELICHRYSUM BRACTEATUM
Helichrysum bracteatum--Strawflower
HELICTOTRICHON SEMPERVIRENS
Helictotrichon sempervirens--Blue Oat Grass
HELIOPHILA LONGIFOLIA
Heliophila longifolia--False Blue Flax
HELIOPSIS HELIANTHOIDES
Heliopsis helianthoides--Sunflower Heliopsis
HELIOTROPE
Heliotropium arborescens--Heliotrope
HELIOTROPIUM ARBORESCENS
Heliotropium arborescens--Heliotrope
HELIPTERIUM
Helipterum spp.--Everlasting
HELLEBORUS
Helleborus Disease Problems
HELLEBORUS FOETIDUS
Helleborus foetidus--Stinking Hellebore
HELLEBORUS NIGER
Helleborus niger--Christmas Rose
HELLEBORUS ORIENTALIS
Helleborus orientalis--Lenten Rose
HELMINTHOSPORIUM
Controlling Lawn Diseases
HELXINE SOLEIROLII
Helxine soleirolii--Baby Tears
HEMEROCALLIS
Hemerocallis--Daylily
Hemerocallis Insect Problems
Hemerocallis Disease Problems
HEMIGRAPHIS
Hemigraphis--Purple Waffle Plant
Hemigraphis Insect Problems
HEMLOCK
Tsuga canadensis--Canadian Hemlock
Tsuga caroliniana--Carolina Hemlock
Tsuga chinensis--Chinese Hemlock
Tsuga diversifolia--Northern Japanese Hemlock
Tsuga heterophylla--Western Hemlock
Tsuga mertensiana--Mountain Hemlock
Tsuga sieboldii--Southern Japanese Hemlock
HENRY'S HONEYSUCKLE
Lonicera henryi--Henry's Honeysuckle
HEPATICA AMERICANA
Hepatica americana
HEPTACOIUM MICONIOIDES
Heptacodium miconioides
HERB OF GRACE
Ruta graveolens--Herb of Grace
HERBICIDES
Controlling Weeds
HEUCHERA
Heuchera Insect Problems
Heuchera Disease Problems
HEUCHERA AMERICANA
Heuchera americana--Rock Geranium
HEUCHERA MICRANTHA
Heuchera micrantha--Small-flowered Alumroot
HEUCHERA SANGUINEA
Heuchera sanguinea--Coral Bells
HEUCHERELLA TIARELLOIDES
X heucherella tiarelloides
HIBA ARBORVITAE
Thujopsis dolobrata--Hiba Arborvitae
HIBISCUS
Hibiscus Insect Problems - Outdoors
Hibiscus Disease Problems - Outdoors
HIBISCUS MOSCHEUTOS
Hibiscus moscheutos--Rose Mallow
HIBISCUS SYRIACUS
Hibiscus syriacus--Rose-of-Sharon
HIBISCUS TRIONUM
Hibiscus trionum--Flower-of-an-Hour
HIGAN CHERRY
Prunus subhirtella--Higan Cherry
HIGH TEMPERATURE LEAF SCORCH
Leaf Scorch
HIGHBUSH BLUEBERRY
Vaccinium corymbosum--Highbush Blueberry
HIGHLAND POPLAR
Populus 'Highland'--Highland Poplar
HIMALAYAN BIRCH
Betula utilis--White-barked Himalayan Birch
HIMALAYAN BLUE POPPY
Meconopsis betonicifolia--Himalayan Blue Poppy
HIMALAYAN BLUEBERRY
Vaccinium moupinense--Himalayan Blueberry
HIMALAYAN CINQUEFOIL
Potentilla atrosanguinea--Himalayan Cinquefoil
HIMALAYAN PINE
Pinus wallichiana--Himalayan Pine
HIMALAYAN SARCOCOCCA
Sarcococca hookerana--Himalayan Sarcococca
HINOKI CYPRESS
Chamaecyparis obtusa--Hinoki Cypress
HIPPEASTRUM
Hippeastrum--Amaryllis
Hippeastrum Disease Problems
HIPPOPHAE RHAMNOIDES
Hippophae rhamnoides--Common Sea Buckthorn
HOLCUS LANATUS
Holcus lanatus--Velvet Grass
HOLCUS MOLLIS
Holcus mollis--Creeping Velvet Grass
HOLLY
Ilex x aquipernyi
Ilex crenata--Japanese Holly
Ilex decidua--Possumhaw
Ilex glabra--Inkberry
Ilex x meserveae--Blue Holly
Ilex opaca--American Holly
Ilex pedunculosa--Longstalk Holly
Ilex verticillata--Winterberry
Ilex--Holly - Indoors
Ilex Insects Problems - Outdoors
Ilex Disease Problems - Outdoors
Nemopanthus mucronatus--Mountain Holly
Iron Deficiency
HOLLYHOCK MALLOW
Malva alcea--Hollyhock Mallow
HOLLYHOCK RUST
Hollyhock Rust
HOLLYHOCKS
Alcea rosea--Hollyhock
Alcea Insect Problems
Alcea Disease Problems
HOMESTEAD ELM
Ulmus x 'Homestead'
HONEYLOCUST
Gleditsia triacanthos var. inermis
Gleditsia Insect Problems
Gleditsia Disease Problems
Plant Bug, Leafhopper on Honeylocust
HONEYSUCKLES
Lonicera x brownii--Brown's Honeysuckle
Lonicera dioica
Lonicera fragrantissima--Winter Honeysuckle
Lonicera x heckrotti--Goldflame Honeysuckle
Lonicera henryi--Henry's Honeysuckle
Lonicera japonica--Japanese Honeysuckle
Lonicera korolkowii--Blueleaf Honeysuckle
Lonicera maackii--Amur Honeysuckle
Lonicera maximowiczii var. sachalinensis
Lonicera morrowii--Morrow Honeysuckle
Lonicera pileata--Privet Honeysuckle
Lonicera sempervirens--Trumpet Honeysuckle
Lonicera tatarica--Tatarian Honeysuckle
Lonicera xylosteum--European Fly Honeysuckle
Lonicera Insect Problems
Lonicera Disease Problems
HOOP-PETTICOAT DAFFODIL
Narcissus bulbocodium--Hoop-petticoat Daffodil
HOPHORNBEAM
Ostrya virginiana--American Hophornbeam
Ostrya Insect Problems
Ostrya Disease Problems
HOPTREE
Ptelea trifoliata--Hoptree
HORDEUM JUBATUM
Hordeum jubatum--Squirrel's-tail Grass
HORNBEAM MAPLE
Acer carpinifolium--Hornbeam Maple
HORNBEAMS
Carpinus betulus--European Hornbeam
Carpinus caroliniana--American Hornbeam
Carpinus japonica--Japanese Hornbeam
Carpinus orientalis--Oriental Hornbeam
Carpinus turczaninovii--Korean Hornbeam
Carpinus Insect Problems
Carpinus Disease Problems
HORNED POPPY
Glaucium spp.--Horned Poppy
HORSECHESTNUTS
Aesculus x carnea--Red Horsechestnut
Aesculus hippocastanum--Horsechestnut
Aesculus pavia--Damask Horsechestnut
Aesculus Insect Problems
Aesculus Disease Problems
HOSTA
Hosta spp.--Plantain Lily
Hosta Disease Problems
HOUSE PLANTS
Abutilon--Flowering Maple
Acalypha hispida--Chenille Plant
Acalypha wilkesiana--Copper Leaf
Achimenes
Adiantum raddianum--Maidenhair Fern
Aeschynanthus lobbianus--Lipstick Vine
Agapanthus africanus--African Lily
Agave americana--Century Plant
Aglaonema--Chinese Evergreen
Aloe--Medicine Plant
Alternanthera ficoidea--Calico Plant
Anthurium--Tailflower
Aphelandra squarrosa--Zebra Plant
Araucaria--Norfolk Island Pine
Asparagus--Asparagus Fern
Aspidistra elatior--Cast Iron Plant
Asplenum nidus--Bird's Nest Fern
Aucuba japonica 'Variegata'--Gold Dust Plant
Azalea as Potted Plant
Begonia, fibrous rooted
Begonia hiemalis--Rieger Begonia
Begonia--Rex Begonia, Iron Cross Begonia
Beloperone guttata--Shrimp Plant
Bougainvillea glabra--Bougainvillea
Brassaia--Schefflera
Bromeliads
Cactus
Caladium - Indoors
Calceolaria herbeohybrida--Pocketbook Plant
Capsicum--Ornamental Pepper - Indoors
Carissa grandiflora--Natal Plum
Cattleya Orchid
Ceropegia woodii--String of Hearts
Chamaedorea elegans--Neanthe belle Palm
Chlorophytum comosum--Spider Plant
Chrysanthemum - Indoors
Cissus spp.--Grape Ivy, Kangaroo Vine
Citrus - Indoors
Clerodendrum thomsonae--Glorybower
Clivia miniata--Kaffir Lily
Codiaeum variegatum--Croton
Coffea arabica--Coffee Plant
Coleus - Indoors
Cordyline terminalis--Ti Plant
Crassula--Jade Plant
Cyclamen - Indoors
Cyperus alternifolia--Umbrella Plant
Dieffenbachia--Dumbcane
Dizygotheca elegantissima--False Aralia
Dracena--Corn Plant, Dragon Tree, Ribbon Plant
Episcia--Flame Violet
Euonymus japonica
Euphorbia pulcherima--Poinsettia
Euphorbia splendens--Crown of Thorns
Exacum affine--Persian Violet
Fatshedera lizei--Tree Ivy
Ficus--Rubber Plant, Creeping Fig, Fiddleleaf Fig
Fittonia argyroneura--Nerve Plant
Forcing Bulbs
Freesia
Fuchsia--Lady's Eardrops - Indoors
Gardenia jasminoides
Gerbera jamesoni--African Daisy
Gynura aurantiaca--Purple Velvet Plant
Hedera helix--English Ivy, Indoors
Helxine soleirolii--Baby Tears
Hemigraphis--Purple Waffle Plant
Hippeastrum--Amaryllis
Hoya carnosa--Wax Plant
Hydrangea macrophylla - Indoors
Hypoestes sanguinolenta--Polka-dot Plant
Ilex--Holly - Indoors
Iresine--Blood Leaf
Jacobinia velutina--Brazilian Plume
Kalanchoe blossfeldiana
Kalanchoe digremontiana--Maternity Plant
Lilium--Easter Lily, Forced Hardy Lily
Maranta--Prayer Plant
Mimosa pudica--Sensitive Plant
Monstera deliciosa--Split Leaf Philodendron
Nautilocalyx
Nematanthus--Guppy Plant
Nephrolepsis--Sword Fern
Nerium--Oleander
Oxalis--Shamrock
Pandanus--Screw Pine
Paphiopedilum
Pelargonium domesticum--Martha Washington Geranium
Pelargonium x hortorum--Geranium
Pelargonium peltatum--Ivy Geranium
Pellionia daveauna--Pellionia
Peperomia
Phaleanopsis--Moth Orchid
Philodendron
Phoenix roebelinii--Date Palm
Pilea--Aluminum Plant, Artillery Plant
Pittosporum
Platycerium bifurcatum--Staghorn Fern
Plectranthus--Swedish Ivy
Podocarpus--Southern Yew
Polyscias--Ming Aralia
Primula--Primrose - Indoors
Rhoeo--Moses-in-the-bullrushes
Saintpaulia--African Violet
Sanseveria--Snake Plant
Saxifraga--Strawberry Begonia
Schlumbergera--Christmas Cactus
Scindapsus--Devil's Ivy
Sedum--Burro Tail
Senecio cruentus--Cineraria
Senecio mikanoides--German Ivy
Sinningia--Gloxinia
Spathiphyllum--Peace Lily
Strelitzia--Bird of Paradise
Streptocarpus--Cape Primrose
Syngonium--Arrowhead
Tolmiea--Piggyback Plant
Zantedeschia--Calla Lily (Indoors)
Zebrina--Wandering Jew
Watering House Plants
Fertilizing House Plants
Selecting House Plants
Light For House Plants
Light Gardens
Temperatures For House Plants
Humidity For House Plants
Soil For House Plants
Pots For House Plants
Transplanting House Plants
House Plant Propagation
House Plant Pests
House Plant Cultural Problems
Terrariums and Dish Gardens
House Plant Leaf Drop
Insects In House Plant Soil
HOUSELEEKS
Sempervivum--Houseleek
Sempervivum Disease Problems
HOUTTUYNIA CORDATA
Houttuynia cordata--Korean Houttuynia
HOYA
Hoya Insect Problems
HOYA CARNOSA
Hoya carnosa--Wax Plant
HRT068 UNIT 001
Acanthopanax sieboldianus
Ampelopsis brevipedunculata--Porcelain Berry
Aralia spinosa--Devil's Walkingstick
Celtis occidentalis--Hackberry
Hedera helix--English Ivy, Outdoors
Kalopanax septemlobus--Castor Aralia
Parthenocissus quinquefolia--Virginia Creeper
Parthenocissus tricuspidata--Boston Ivy
Ulmus americana--American Elm
Ulmus parvifolia--Lacebark Elm
Ulmus pumila--Siberian Elm
Zelkova serrata--Japanese Zelkova
HRT068 UNIT 002
Eleagnus angustifolia--Russian Olive
Eucommia ulmoides--Hardy Rubber Tree
Koelreuteria paniculata--Panicled Goldenraintree
Maclura pomifera--Osage Orange
Morus alba--White Mulberry
Nyssa sylvatica--Black Gum
Platanus x acerifolia--London Planetree
Platanus occidentalis--Sycamore
Tilia americana--American Linden
Tilia cordata--Littleleaf Linden
Tilia tomentosa--Silver Linden
HRT068 UNIT 003
Carya ovata--Shagbark Hickory
Cercidiphyllum japonicum--Katsura Tree
Clethra alnifolia--Summersweet
Juglans nigra--Black Walnut
Phellodendron amurense--Amur Corktree
Ptelea trifoliata--Hoptree
Rhamnus frangula--Glossy Buckthorn
HRT068 UNIT 004
Actinidia arguta--Bower Actinidia
Caragana arborescens--Siberian Peashrub
Cercis canadensis--Redbud
Cladrastis kentuckea--Yellow-wood
Cytisus scoparius--Scotch Broom
Gleditsia triacanthos var. inermis
Gymnocladus dioicus--Kentucky Coffeetree
Laburnum x watereri--Goldenchain Tree
Robinia hispida--Rose Acacia
Robinia pseudoacacia--Black Locust
Sophora japonica--Japanese Pagoda Tree
Wisteria sinensis--Chinese Wisteria
HRT068 UNIT 005
Acer buergerianum--Trident Maple
Acer campestre--Hedge Maple
Acer ginnala--Amur Maple
Acer griseum--Paperbark Maple
Acer negundo--Boxelder
Acer palmatum--Japanese Maple
Acer pensylvanicum--Striped Maple
Acer platanoides--Norway Maple
Acer rubrum--Red Maple
Acer saccharinum--Silver Maple
Acer saccharum--Sugar Maple
HRT068 UNIT 006
Alnus glutinosa--European Alder
Betula nigra--River Birch
Betula papyrifera--Paper Birch
Betula pendula--European Birch
Carpinus betulus--European Hornbeam
Carpinus caroliniana--American Hornbeam
Corylus americana--American Hazelnut
Corylus avellana--European Filbert
Ostrya virginiana--American Hophornbeam
HRT068 UNIT 007
Celastrus scandens--American Bittersweet
Cotinus coggygria--Smoketree
Euonymus alatus--Burning Bush
Euonymus europaeus--Spindle Tree
Euonymus fortunei--Wintercreeper
Paxistima canbyi--Canby Paxistima
Rhus aromatica--Fragrant Sumac
Rhus copallina--Shining Sumac
Rhus typhina--Staghorn Sumac
HRT068 UNIT 008
Akebia quintata--Fiveleaf Akebia
Aristolochia macrophylla--Dutchman's Pipe
Buddleia davidii--Butterfly-bush
Callicarpa dichotoma--Purple Beautyberry
Campsis radicans--Trumpet Creeper
Caryopteris x clandonensis--Bluebeard
Catalpa speciosa--Northern Catalpa
Lindera benzoin--Spicebush
Sassafras albidum--Sassafras
HRT068 UNIT 009
Fagus grandiflora--American Beech
Fagus sylvatica--European Beech
Quercus acutissima--Sawtooth Oak
Quercus alba--White Oak
Quercus bicolor--Swamp White Oak
Quercus imbricaria--Shingle Oak
Quercus macrocarpa--Burr Oak
Quercus palustris--Pin Oak
Quercus phellos--Willow Oak
Quercus robur--English Oak
Quercus rubra--Red Oak
HRT068 UNIT 010
Ginkgo biloba--Maidenhair Tree
Populus deltoides--Eastern Cottonwood
Populus tremuloides--Quaking Aspen
Salix alba--White Willow
Salix caprea--Goat Willow
Salix matsudana--Hankow Willow
Salix purpurea--Purpleosier Willow
Stewartia pseudocamellia--Japanese Stewartia
Tamarix ramosissima--Five-stamen Tamarix
HRT068 UNIT 011
Picea abies--Norway Spruce
Picea glauca--White Spruce
Picea omorika--Serbian Spruce
Picea pungens--Colorado Spruce
Pinus aristata--Bristlecone Pine
Pinus bungeana--Lacebark Pine
Pinus cembra--Swiss Stone Pine
Pinus densiflora--Japanese Red Pine
Pinus flexilis--Limber Pine
Pinus mugo--Swiss Mountain Pine
Pinus nigra--Austrian Pine
Pinus ponderosa--Ponderosa Pine
Pinus strobus--Eastern White Pine
Pinus sylvestris--Scotch Pine
HRT068 UNIT 012
Abies concolor--White Fir
Abies fraseri--Fraser Fir
Abies nordmanniana--Caucasian Fir
Cryptomeria japonica--Japanese Cedar
Larix decidua--European Larch
Larix kaempferi--Japanese Larch
Larix laricina--Tamarack
Metasequoia glyptostroboides--Dawn Redwood
Pseudotsuga menziesii--Douglas Fir
Sciadopitys verticillata--Japanese Umbrella Pine
Taxodium distichum--Common Bald Cypress
Tsuga canadensis--Canadian Hemlock
HRT068 UNIT 013
Chamaecyparis nootkatensis--Nootka Falsecypress
Chamaecyparis obtusa--Hinoki Cypress
Chamaecyparis pisifera--Sawara Falsecypress
Juniperus chinensis--Chinese Juniper
Juniperus communis--Common Juniper
Juniperus horizontalis--Creeping Juniper
Juniperus procumbens--Japanese Garden Juniper
Juniperus sabina--Savin Juniper
Juniperus squamata--Singleseed Juniper
Juniperus virginiana--Eastern Red Cedar
Microbiota decussata--Siberian Cypress
Thuja occidentalis--White Cedar
Thuja orientalis--Oriental Arborvitae
HRT068 UNIT 014
Taxus baccata--English Yew
Taxus cuspidata--Japanese Yew
Taxus x media--Anglojap Yew
HRT068 UNIT 051
Galium odoratum--Sweet Woodruff
Lavandula angustifolia--Common Lavender
Lavandula stoechas--French Lavender
HRT068 UNIT 052
Monarda didyma--Beebalm
Nepeta x faassenii--Persian Catmint
Ocimum basilicum--Sweet Basil
Perovskia atriplicifolia--Russian Sage
Phlomis russeliana--Greek Jerusalem Sage
Salvia farinacea--Blue Sage
Salvia splendens--Scarlet Sage
Stachys byzantina--Lamb's-ears
Teucrium chamaedrys--Wall Germander
Thymus x citriodorus--Lemon Thyme
Thymus pseudolanuginosus--Woolly Thyme
HRT068 UNIT 053
Delphinium elatum--Delphinium
Delphinium grandiflorum
Dicentra eximia--Fringed Bleeding Heart
Dicentra spectabilis--Bleeding Heart
Geranium spp.--Crane's-bill
Heuchera americana--Rock Geranium
Heuchera micrantha--Small-flowered Alumroot
Heuchera sanguinea--Coral Bells
Papaver nudicaule--Iceland Poppy
Papaver orientale--Oriental Poppy
Viola--Pansy
Viola--Violet
HRT068 UNIT 054
Achillea filipendulina--Fern-leaf Yarrow
Achillea millefolium--Common Yarrow
Alcea rosea--Hollyhock
Astilbe x arendsii--False Spirea
Astilbe chinensis--Chinese Astilbe
Astilbe x crispa
Astilbe simplicifolia--Star Astilbe
Campanula barbata--Bearded Bellflower
Campanula carpatica--Carpathian Bellflower
Campanula coclearifolia
Campanula garganica
Campanula glomerata--Clustered Bellflower
Campanula lactiflora
Campanula persicifolia--Peachleaf Bellflower
Campanula porscharskyana--Serbian Bellflower
Campanula portenschlagiana--Dalmatian Bellflower
Campanula pyramidalis--Chimney Bellflower
Campanula punctata
Campanula rotundifolia--Bluebells-of-Scotland
Campanula trachelium--English Throatwort
Datura metel--Angel's Trumpet
Lobelia cardinalis--Cardinal Flower
Lobelia siphilitica--Great Blue Lobelia
Oenothera missouriensis--Ozark Sundrop
HRT068 UNIT 055
Brassica oleracea var. acephala--Flowering Kale
Cleome hasslerana--Spider Flower
Gypsophila paniculata--Perennial Baby's Breath
Limonium latifolium--Sea Lavender
Limonium sinuatum--Statice
Platycodon grandiflorus--Balloon Flower
Sedum acre--Golden-carpet
Sedum kamtschaticum--Kamschatca Stonecrop
Sedum reflexum
Sedum sieboldii--October Daphne
Sedum spectabile--Showy Stonecrop
Sedum spurium--Two-row Stonecrop
Sempervivum--Houseleek
HRT068 UNIT 056
Artemisia ludoviciana--White Sage
Artemisia schmidtiana--Satiny Wormwood
Artemisia stellerana--Beach Wormwood
Aster hybrids--Michaelmas Daisy
Calendula officianalis--Pot Marigold
Chrysanthemum pacificum--Gold and Silver
Chrysanthemum x superbum--Shasta Daisy
Liatris scariosa--Tall Gayfeather
Liatris spicata--Spike Gayfeather
Santolina chamaecyparissus--Lavender Cotton
Senecio cineraria--Dusty Miller
HRT068 UNIT 057
Coreopsis grandiflora--Tickseed
Coreopsis verticillata--Thread-leaf Coreopsis
Doronicum caucasicum--Leopard's-bane
Echinacea purpurea--Purple Coneflower
Echinops ritro--Globe Thistle
Gazania--Treasure Flower
Helianthus annuus--Sunflower
Helianthus x multiflorus--Many-flowered Sunflower
Helichrysum bracteatum--Strawflower
Heliopsis helianthoides--Sunflower Heliopsis
Rudbeckia fulgida--Orange Coneflower
Rudbeckia hirta--Black-eyed Susan
Rudbeckia laciniata--Cutleaf Coneflower
Rudbeckia nitida--Shining Coneflower
Solidago--Goldenrod
Stokesia laevis--Stokes Aster
HRT068 UNIT 058
Briza maxima--Big Quaking Grass
Calamagrostis x acutiflora--Feather Reed Grass
Carex buchananii--Leatherleaf Sedge Grass
Carex conica--Miniature Sedge
Carex elata--Tufted Sedge
Carex flacca--Blue Sedge
Carex morrowii--Japanese Sedge Grass
Carex muskingumensis--Palm Sedge
Carex hachijoensis (C. oshimensis)
Carex siderosticha--Creeping Broad-leaf Sedge
Chasmanthium latifolium--Northern Sea Oats
Coix lacryma-jobi--Job's Tears
Cyperus alternifolia--Umbrella Plant
Erianthus ravennae--Ravenna Grass
Festuca cinerea--Blue Fescue
Helictotrichon sempervirens--Blue Oat Grass
Imperata cylindrica--Satintail
Juncus effusus--Soft Rush
Lagurus ovatus--Hare's-tail Grass
Miscanthus sinensis--Japanese Silver Grass
Pennisetum alopecuroides--Fountain Grass
Pennisetum setaceum--Crimson Fountain Grass
Phalaris arundinacea--Reed Canary Grass
HRT068 UNIT 059
Ageratum houstonianum--Floss Flower
Antirrhinum majus--Snapdragon
Catharanthus roseus--Periwinkle
Dianthus chinensis--Annual Pink
Dianthus x allwoodii--Allwood Pink
Dianthus gratianopolitanus--Cheddar Pink
Impatiens balsamina--Balsam
Impatiens hybrids--Impatiens
Lobularia--Sweet Alyssum
Nicotiana alata--Flowering Tobacco
Pelargonium x hortorum--Geranium
Petunia x hybrida--Petunia
Portulaca--Moss Rose
Verbena hortensis--Verbena
HRT068 UNIT 060
Amaranthus caudatus--Love-Lies-Bleeding
Amaranthus tricolor--Joseph's Coat
Capsicum annuum--Ornamental Pepper - Outdoors
Celosia--Cockscomb
Cosmos bipinnatus--Mexican Aster
Gomphrena globosa--Globe Amaranth
Kochia scoparia--Summer Cypress
Tagetes--Marigold
Zinnia
HRT068 UNIT 061
Euphorbia cyparrisias--Cypress Spurge
Euphorbia polychroma--Cushion Spurge
Euphorbia marginata--Snow on the Mountain
Linum flavum--Golden Flax
Linum perenne--Perennial Flax
Phlox paniculata--Garden Phlox
Ricinus communis--Castor Bean
Tropaeolum--Nasturtium
HRT068 UNIT 062
Arabis caucasica--Wall Rock Cress
Armeria maritima--Sea Pink
Aubrieta deltoidia--Purple Rock Cress
Aurinia saxatalis--Basket of Gold
Lunaria annua--Money Plant
Lythrum salicaria--Purple Loosestrife
HRT069 UNIT 015
Ilex crenata--Japanese Holly
Ilex glabra--Inkberry
Ilex x meserveae--Blue Holly
Ilex opaca--American Holly
Ilex verticillata--Winterberry
HRT069 UNIT 016
Arctostaphylos uva-ursi--Bearberry
Calluna vulgaris--Scotch Heather
Enkianthus campanulatus--Redvein Enkianthus
Erica carnea--Spring Heath
Kalmia latifolia--Mountain-laurel
Leucothoe fontainsiana--Drooping Leucothoe
Oxydendrum arboreum--Sourwood
Pieris floribunda--Mountain Pieris
Pieris japonica--Japanese Pieris
Rhododendron--Rhododendron, Azalea
Azaleas - Hardy species and hybrids
Rhododendrons - Hardy species and hybrids
Vaccinium corymbosum--Highbush Blueberry
HRT069 UNIT 017
Berberis julianae--Wintergreen Barberry
Berberis x mentorensis--Mentor Barberry
Berberis thunbergii--Japanese Barberry
Buxus microphylla--Littleleaf Boxwood
Buxus sempervirens--Common Boxwood
Mahonia aquifolium--Oregon Grape Holly
Pachysandra procumbens--Allegheny Spurge
Pachysandra terminalis
Vinca minor--Myrtle
Yucca filamentosa--Adam's Needle Yucca
HRT069 UNIT 018
Ajuga reptans--Bugleweed
Corylopsis spicata--Spike Winterhazel
Fothergilla gardenii--Dwarf Fothergilla
Fothergilla major--Large Fothergilla
Hamamelis x intermedia
Hamamelis vernalis--Vernal Witchhazel
Hamamelis virginiana--Common Witchhazel
Iberis sempervirens--Evergreen Candytuft
Liquidambar styraciflua--Sweet Gum
Liriope spicata--Creeping Lily Turf
Parrotia persica--Persian Parrotia
HRT069 UNIT 019
Cornus alternifolia--Pagoda Dogwood
Cornus florida--Flowering Dogwood
Cornus kousa--Kousa Dogwood
Cornus mas--Cornelian Cherry
Cornus racemosa--Gray Dogwood
Cornus sericea (stolonifera)--Red Twigged Dogwood
Liriodendron tulipifera--Tuliptree
Magnolia acuminata--Cucumber Tree
Magnolia x loebneri--Loebner Magnolia
Magnolia salicifolia--Anise Magnolia
Magnolia x soulangiana--Saucer Magnolia
Magnolia stellata--Star Magnolia
Magnolia tripetala--Umbrella Magnolia
Magnolia virginiana--Sweetbay Magnolia
HRT069 UNIT 020
Chionanthus virginicus--Fringe Tree
Forsythia x intermedia--Border Forsythia
Forsythia suspensa var. sieboldii--Weeping Forsythia
Fraxinus americana--White Ash
Fraxinus pennsylvanica--Green Ash
Ligustrum obtusifolium--Border Privet
Syringa x chinensis--Chinese Lilac
Syringa meyeri--Meyer Lilac
Syringa patula--Manchurian Lilac
Syringa reticulata--Japanese Tree Lilac
Syringa villosa--Late Lilac
Syringa vulgaris--Common Lilac
HRT069 UNIT 021
Kolkwitzia amabilis--Beautybush
Lonicera fragrantissima--Winter Honeysuckle
Lonicera japonica--Japanese Honeysuckle
Lonicera korolkowii--Blueleaf Honeysuckle
Lonicera maackii--Amur Honeysuckle
Lonicera tatarica--Tatarian Honeysuckle
Lonicera xylosteum--European Fly Honeysuckle
Sambucus canadensis--Elderberry
Sambucus pubens--Scarlet Elder
Symphoricarpos albus--Common Snowberry
Symphoricarpos x chenaultii--Chenault Coralberry
Symphoricarpos orbiculatus--Indiancurrent Coralberry
HRT069 UNIT 022
Viburnum x burkwoodii--Burkwood Viburnum
Viburnum carlesi--Korean Spice Viburnum
Viburnum dentatum--Arrowwood
Viburnum farreri--Fragrant Viburnum
Viburnum lantana--Wayfaring Tree
Viburnum lentago--Nannyberry
Viburnum opulus--European Cranberrybush
Viburnum plicatum f. tomentosum
Viburnum rhytidophyllum--Leatherleaf Viburnum
Viburnum sieboldii--Siebold Viburnum
Weigela florida--Old Fashioned Weigela
HRT069 UNIT 023
Crataegus crus-galli--Cockspur Hawthorn
Crataegus laevigata--English Hawthorn
Crataegus phaenopyrum--Washington Hawthorn
Malus--Crab Apple
Malus Cultivar List A - C
Malus Cultivar List D - N
Malus Cultivar List O - R
Malus Cultivar List S - Z
HRT069 UNIT 024
Prunus americana--American Plum
Prunus avium--Mazzard Cherry
Prunus besseyi--Western Sand Cherry
Prunus x blireana--Blireana Plum
Prunus cerasifera--Cherry Plum
Prunus x cistena--Purple Sand Cherry
Prunus glandulosa--Dwarf Flowering Almond
Prunus incisa--Fuji Cherry
Prunus maacki--Amur Chokecherry
Prunus maritima--Beach Plum
Prunus mume--Japanese Apricot
Prunus nigra--Canada Plum
Prunus padus--European Bird Cherry
Prunus pennsylvanica--Pin Cherry
Prunus sargentii--Sargent Cherry
Prunus serotina--Black Cherry
Prunus serrula
Prunus serrulata--Oriental Cherry
Prunus x 'Snofozam'--Snow Fountains Weeping Cherry
Prunus subhirtella--Higan Cherry
Prunus tomentosa--Nanking Cherry
Prunus virginiana--Chokecherry
Prunus x yedoensis--Yoshino Cherry
Pyrus calleryana--Callery Pear
Sorbus aucuparia--European Mountain Ash
HRT069 UNIT 025
Amelanchier arborea--Downy Serviceberry
Chaenomeles speciosa--Flowering Quince
Cotoneaster acutifolius--Peking Cotoneaster
Cotoneaster apiculatus--Cranberry Cotoneaster
Cotoneaster divaricatus--Spreading Cotoneaster
Cotoneaster horizontalis--Rock Cotoneaster
Exochorda racemosa--Common Pearlbush
Kerria japonica--Japanese Kerria
Physocarpus opulifolius--Common Ninebark
HRT069 UNIT 026
Clematis x jackmanii--Jackman Clematis
Clematis terniflora--Sweetautumn Clematis
Myrica pennsylvanica--Northern Bayberry
Paeonia suffruticosa--Tree Peony
Potentilla fruticosa--Bush Cinquefoil
Pyracantha coccinea--Firethorn
Rhodotypos scandens--Black Jetbead
Sorbaria sorbifolia--Ural False Spirea
Spiraea x bumalda--Bumald Spirea
Spiraea japonica--Japanese Spirea
Spiraea nipponica--Nippon Spirea
Spiraea thunbergii--Thunberg Spirea
Spiraea x vanhouttei--Van Houtte Spirea
HRT069 UNIT 027
Aesculus x carnea--Red Horsechestnut
Aesculus hippocastanum--Horsechestnut
Aesculus parviflora--Bottlebrush Buckeye
Aesculus pavia--Damask Horsechestnut
Calycanthus floridus--Sweetshrub
Hibiscus syriacus--Rose-of-Sharon
Hypericum androsaemum--Tutsan
Hypericum calycinum--Aaronsbeard St. Johnswort
Hypericum frondosum--Golden St. Johnswort
Hypericum kalmianum--Kalm St. Johnswort
Hypericum x moserianum
Hypericum patulum--Goldencup St. Johnswort
HRT069 UNIT 028
Deutzia gracilis--Slender Deutzia
Halesia monticola--Mountain Silverbell
Hydrangea anomala subsp. petiolaris
Hydrangea arborescens--Smooth Hydrangea
Hydrangea paniculata--Panicle Hydrangea
Hydrangea quercifolia--Oak-leaved Hydrangea
Philadelphus coronarius--Sweet Mockorange
Ribes alpinum--Alpine Currant
Ribes aureum--Golden Flowering Currant
Schizophragma hydrangeoides--Japanese Hydrangea Vine
Styrax japonicus--Japanese Snowbell
HRT069 UNIT 067
Allium giganteum--Giant Allium
Allium schoenoprasum--Chives
Begonia x semperflorens--Fibrous Rooted Begonia
Begonia x tuberhybrida--Tuberous Begonia
Convallaria majalis--Lily-of-the-Valley
Hyacinthus x orientalis--Hyacinth
Iris germanica--Bearded Iris
Iris siberica--Siberian Iris
Ornithogalum umbellatum--Star-of-Bethlehem
Tulipa spp.--Tulip
HRT069 UNIT 068
Canna x generalis--Canna
Colchicum autumnale--Autumn Crocus
Dahlia--Bedding Dahlia
Dahlia
Gladiolus hybrids
Hemerocallis--Daylily
Hosta spp.--Plantain Lily
Kniphofia uvaria--Torch Lily
Lilium--Lily
Tigridia pavonia--Tiger Flower
HRT069 UNIT 069
Ascelpias tuberosa--Butterfly Weed
Caltha palustris--Marsh Marigold
Cypripedium calceolus--Yellow Lady's Slipper
Eryngium amethystinum--Amethyst Sea Holly
Erythronium americanum--Trout Lily
Mertensia virginica--Virginia Bluebells
Polygonatum odoratum--Solomon's-seal
Ranunculus repens--Creeping Buttercup
Sanguinaria canadensis--Bloodroot
Trillium grandiflorum--Wood Lily
HRT069 UNIT 070
Adiantum pedatum--American Maidenhair Fern
Athyrium felix-femina--Lady Fern
Athyrium nipponicum 'Pictum'--Japanese Painted Fern
Dryopteris erythrosora--Japanese Shield Fern
Dryopteris marginalis--Marginal Shield Fern
Matteuccia struthiopteris--Ostrich Fern
Onoclea sensibilis--Sensitive Fern
Osmunda cinnamomea--Cinnamon Fern
Osmunda regalis--Royal Fern
Polystichum acrostichoides--Christmas Fern
HRT069 UNIT 072
Ipomoea alba--Moonflower
Ipomoea spp.--Morning Glory
Lathyrus latifolius--Perennial Pea
Lathyrus odoratus--Sweet Pea
Polygonum aubertii--Silverlace Vine
Polygonum japonicum--Japanese Knotweed
Thunbergia alata--Clockvine
HRT069 UNIT 073
Aegopodium podagaria--Goutweed
Asarum canadense--Wild Ginger
Asarum europaeum--European Wild Ginger
Cerastium tomentosum--Snow-In-Summer
Coronilla varia--Crown Vetch
Epimedium x rubrum--Barrenwort
Epimedium x versicolor 'Sulphureum'--Barrenwort
Fragaria--Wild Strawberry, Alpine Strawberry
Houttuynia cordata--Korean Houttuynia
Lamium galeobdolon--Yellow Archangel
Lamium maculatum--Spotted Deadnettle
Lotus corniculatus--Bird's-foot Trefoil
Lysimachia clethroides--Gooseneck Loosestrife
Lysimachia nummularia--Creeping Jenny
Mazus reptans
Waldsteinia ternata--Siberian Barren Strawberry
HRT069 UNIT 074
Aquilegia x hybrida--Columbine
Dictamnus albus--Gas Plant
Digitalis purpurea--Foxglove
Lupinus--Lupine
Paeonia lactiflora--Common Garden Peony
Paeonia tenuifolia--Fernleaf Peony
Phaseolus coccineus--Scarlet Runner Bean
Primula x polyantha--Polyantha Primrose
HRT211 UNIT 001
Acanthopanax sieboldianus
Ampelopsis brevipedunculata--Porcelain Berry
Aralia spinosa--Devil's Walkingstick
Celtis occidentalis--Hackberry
Hedera helix--English Ivy, Outdoors
Kalopanax septemlobus--Castor Aralia
Parthenocissus quinquefolia--Virginia Creeper
Parthenocissus tricuspidata--Boston Ivy
Ulmus americana--American Elm
Ulmus parvifolia--Lacebark Elm
Ulmus pumila--Siberian Elm
Zelkova serrata--Japanese Zelkova
HRT211 UNIT 002
Eleagnus angustifolia--Russian Olive
Eucommia ulmoides--Hardy Rubber Tree
Koelreuteria paniculata--Panicled Goldenraintree
Maclura pomifera--Osage Orange
Morus alba--White Mulberry
Nyssa sylvatica--Black Gum
Platanus x acerifolia--London Planetree
Platanus occidentalis--Sycamore
Tilia americana--American Linden
Tilia cordata--Littleleaf Linden
Tilia tomentosa--Silver Linden
HRT211 UNIT 003
Carya ovata--Shagbark Hickory
Cercidiphyllum japonicum--Katsura Tree
Clethra alnifolia--Summersweet
Juglans nigra--Black Walnut
Phellodendron amurense--Amur Corktree
Ptelea trifoliata--Hoptree
Rhamnus frangula--Glossy Buckthorn
HRT211 UNIT 004
Actinidia arguta--Bower Actinidia
Caragana arborescens--Siberian Peashrub
Cercis canadensis--Redbud
Cladrastis kentuckea--Yellow-wood
Cytisus scoparius--Scotch Broom
Gleditsia triacanthos var. inermis
Gymnocladus dioicus--Kentucky Coffeetree
Laburnum x watereri--Goldenchain Tree
Robinia hispida--Rose Acacia
Robinia pseudoacacia--Black Locust
Sophora japonica--Japanese Pagoda Tree
Wisteria sinensis--Chinese Wisteria
HRT211 UNIT 005
Acer buergerianum--Trident Maple
Acer campestre--Hedge Maple
Acer ginnala--Amur Maple
Acer griseum--Paperbark Maple
Acer negundo--Boxelder
Acer palmatum--Japanese Maple
Acer pensylvanicum--Striped Maple
Acer platanoides--Norway Maple
Acer rubrum--Red Maple
Acer saccharinum--Silver Maple
Acer saccharum--Sugar Maple
HRT211 UNIT 006
Alnus glutinosa--European Alder
Betula nigra--River Birch
Betula papyrifera--Paper Birch
Betula pendula--European Birch
Carpinus betulus--European Hornbeam
Carpinus caroliniana--American Hornbeam
Corylus americana--American Hazelnut
Corylus avellana--European Filbert
Ostrya virginiana--American Hophornbeam
HRT211 UNIT 007
Celastrus scandens--American Bittersweet
Cotinus coggygria--Smoketree
Euonymus alatus--Burning Bush
Euonymus europaeus--Spindle Tree
Euonymus fortunei--Wintercreeper
Paxistima canbyi--Canby Paxistima
Rhus aromatica--Fragrant Sumac
Rhus copallina--Shining Sumac
Rhus typhina--Staghorn Sumac
HRT211 UNIT 008
Akebia quintata--Fiveleaf Akebia
Aristolochia macrophylla--Dutchman's Pipe
Buddleia davidii--Butterfly-bush
Callicarpa dichotoma--Purple Beautyberry
Campsis radicans--Trumpet Creeper
Caryopteris x clandonensis--Bluebeard
Catalpa speciosa--Northern Catalpa
Lindera benzoin--Spicebush
Sassafras albidum--Sassafras
HRT211 UNIT 009
Fagus grandiflora--American Beech
Fagus sylvatica--European Beech
Quercus acutissima--Sawtooth Oak
Quercus alba--White Oak
Quercus bicolor--Swamp White Oak
Quercus imbricaria--Shingle Oak
Quercus macrocarpa--Burr Oak
Quercus palustris--Pin Oak
Quercus phellos--Willow Oak
Quercus robur--English Oak
Quercus rubra--Red Oak
HRT211 UNIT 010
Ginkgo biloba--Maidenhair Tree
Populus deltoides--Eastern Cottonwood
Populus tremuloides--Quaking Aspen
Salix alba--White Willow
Salix caprea--Goat Willow
Salix matsudana--Hankow Willow
Salix purpurea--Purpleosier Willow
Stewartia pseudocamellia--Japanese Stewartia
Tamarix ramosissima--Five-stamen Tamarix
HRT211 UNIT 011
Picea abies--Norway Spruce
Picea glauca--White Spruce
Picea omorika--Serbian Spruce
Picea pungens--Colorado Spruce
Pinus aristata--Bristlecone Pine
Pinus bungeana--Lacebark Pine
Pinus cembra--Swiss Stone Pine
Pinus densiflora--Japanese Red Pine
Pinus flexilis--Limber Pine
Pinus mugo--Swiss Mountain Pine
Pinus nigra--Austrian Pine
Pinus ponderosa--Ponderosa Pine
Pinus strobus--Eastern White Pine
Pinus sylvestris--Scotch Pine
HRT211 UNIT 012
Abies concolor--White Fir
Abies fraseri--Fraser Fir
Abies nordmanniana--Caucasian Fir
Cryptomeria japonica--Japanese Cedar
Larix decidua--European Larch
Larix kaempferi--Japanese Larch
Larix laricina--Tamarack
Metasequoia glyptostroboides--Dawn Redwood
Pseudotsuga menziesii--Douglas Fir
Sciadopitys verticillata--Japanese Umbrella Pine
Taxodium distichum--Common Bald Cypress
Tsuga canadensis--Canadian Hemlock
HRT211 UNIT 013
Chamaecyparis nootkatensis--Nootka Falsecypress
Chamaecyparis obtusa--Hinoki Cypress
Chamaecyparis pisifera--Sawara Falsecypress
Juniperus chinensis--Chinese Juniper
Juniperus communis--Common Juniper
Juniperus horizontalis--Creeping Juniper
Juniperus procumbens--Japanese Garden Juniper
Juniperus sabina--Savin Juniper
Juniperus squamata--Singleseed Juniper
Juniperus virginiana--Eastern Red Cedar
Microbiota decussata--Siberian Cypress
Thuja occidentalis--White Cedar
Thuja orientalis--Oriental Arborvitae
HRT211 UNIT 014
Taxus baccata--English Yew
Taxus cuspidata--Japanese Yew
Taxus x media--Anglojap Yew
HRT211 UNIT 051
Galium odoratum--Sweet Woodruff
Lavandula angustifolia--Common Lavender
Lavandula stoechas--French Lavender
HRT211 UNIT 052
Monarda didyma--Beebalm
Nepeta x faassenii--Persian Catmint
Ocimum basilicum--Sweet Basil
Perovskia atriplicifolia--Russian Sage
Phlomis russeliana--Greek Jerusalem Sage
Salvia farinacea--Blue Sage
Salvia splendens--Scarlet Sage
Stachys byzantina--Lamb's-ears
Teucrium chamaedrys--Wall Germander
Thymus x citriodorus--Lemon Thyme
Thymus pseudolanuginosus--Woolly Thyme
HRT211 UNIT 053
Delphinium elatum--Delphinium
Delphinium grandiflorum
Dicentra eximia--Fringed Bleeding Heart
Dicentra spectabilis--Bleeding Heart
Geranium spp.--Crane's-bill
Heuchera americana--Rock Geranium
Heuchera micrantha--Small-flowered Alumroot
Heuchera sanguinea--Coral Bells
Papaver nudicaule--Iceland Poppy
Papaver orientale--Oriental Poppy
Viola--Pansy
Viola--Violet
HRT211 UNIT 054
Achillea filipendulina--Fern-leaf Yarrow
Achillea millefolium--Common Yarrow
Alcea rosea--Hollyhock
Astilbe x arendsii--False Spirea
Astilbe chinensis--Chinese Astilbe
Astilbe x crispa
Astilbe simplicifolia--Star Astilbe
Campanula barbata--Bearded Bellflower
Campanula carpatica--Carpathian Bellflower
Campanula coclearifolia
Campanula garganica
Campanula glomerata--Clustered Bellflower
Campanula lactiflora
Campanula persicifolia--Peachleaf Bellflower
Campanula porscharskyana--Serbian Bellflower
Campanula portenschlagiana--Dalmatian Bellflower
Campanula pyramidalis--Chimney Bellflower
Campanula punctata
Campanula rotundifolia--Bluebells-of-Scotland
Campanula trachelium--English Throatwort
Datura metel--Angel's Trumpet
Lobelia cardinalis--Cardinal Flower
Lobelia siphilitica--Great Blue Lobelia
Oenothera missouriensis--Ozark Sundrop
HRT211 UNIT 055
Brassica oleracea var. acephala--Flowering Kale
Cleome hasslerana--Spider Flower
Gypsophila paniculata--Perennial Baby's Breath
Limonium latifolium--Sea Lavender
Limonium sinuatum--Statice
Platycodon grandiflorus--Balloon Flower
Sedum acre--Golden-carpet
Sedum kamtschaticum--Kamschatca Stonecrop
Sedum reflexum
Sedum sieboldii--October Daphne
Sedum spectabile--Showy Stonecrop
Sedum spurium--Two-row Stonecrop
Sempervivum--Houseleek
HRT211 UNIT 056
Artemisia ludoviciana--White Sage
Artemisia schmidtiana--Satiny Wormwood
Artemisia stellerana--Beach Wormwood
Aster hybrids--Michaelmas Daisy
Calendula officianalis--Pot Marigold
Chrysanthemum pacificum--Gold and Silver
Chrysanthemum x superbum--Shasta Daisy
Liatris scariosa--Tall Gayfeather
Liatris spicata--Spike Gayfeather
Santolina chamaecyparissus--Lavender Cotton
Senecio cineraria--Dusty Miller
HRT211 UNIT 057
Coreopsis grandiflora--Tickseed
Coreopsis verticillata--Thread-leaf Coreopsis
Doronicum caucasicum--Leopard's-bane
Echinacea purpurea--Purple Coneflower
Echinops ritro--Globe Thistle
Gazania--Treasure Flower
Helianthus annuus--Sunflower
Helianthus x multiflorus--Many-flowered Sunflower
Helichrysum bracteatum--Strawflower
Heliopsis helianthoides--Sunflower Heliopsis
Rudbeckia fulgida--Orange Coneflower
Rudbeckia hirta--Black-eyed Susan
Rudbeckia laciniata--Cutleaf Coneflower
Rudbeckia nitida--Shining Coneflower
Solidago--Goldenrod
Stokesia laevis--Stokes Aster
HRT211 UNIT 058
Briza maxima--Big Quaking Grass
Calamagrostis x acutiflora--Feather Reed Grass
Carex buchananii--Leatherleaf Sedge Grass
Carex conica--Miniature Sedge
Carex elata--Tufted Sedge
Carex flacca--Blue Sedge
Carex morrowii--Japanese Sedge Grass
Carex muskingumensis--Palm Sedge
Carex hachijoensis (C. oshimensis)
Carex siderosticha--Creeping Broad-leaf Sedge
Chasmanthium latifolium--Northern Sea Oats
Coix lacryma-jobi--Job's Tears
Cyperus alternifolia--Umbrella Plant
Erianthus ravennae--Ravenna Grass
Festuca cinerea--Blue Fescue
Helictotrichon sempervirens--Blue Oat Grass
Imperata cylindrica--Satintail
Juncus effusus--Soft Rush
Lagurus ovatus--Hare's-tail Grass
Miscanthus sinensis--Japanese Silver Grass
Pennisetum alopecuroides--Fountain Grass
Pennisetum setaceum--Crimson Fountain Grass
Phalaris arundinacea--Reed Canary Grass
HRT211 UNIT 059
Ageratum houstonianum--Floss Flower
Antirrhinum majus--Snapdragon
Catharanthus roseus--Periwinkle
Dianthus chinensis--Annual Pink
Dianthus x allwoodii--Allwood Pink
Dianthus gratianopolitanus--Cheddar Pink
Impatiens balsamina--Balsam
Impatiens hybrids--Impatiens
Lobularia--Sweet Alyssum
Nicotiana alata--Flowering Tobacco
Pelargonium x hortorum--Geranium
Petunia x hybrida--Petunia
Portulaca--Moss Rose
Verbena hortensis--Verbena
HRT211 UNIT 060
Amaranthus caudatus--Love-Lies-Bleeding
Amaranthus tricolor--Joseph's Coat
Capsicum annuum--Ornamental Pepper - Outdoors
Celosia--Cockscomb
Cosmos bipinnatus--Mexican Aster
Gomphrena globosa--Globe Amaranth
Kochia scoparia--Summer Cypress
Tagetes--Marigold
Zinnia
HRT211 UNIT 061
Euphorbia cyparrisias--Cypress Spurge
Euphorbia polychroma--Cushion Spurge
Euphorbia marginata--Snow on the Mountain
Linum flavum--Golden Flax
Linum perenne--Perennial Flax
Phlox paniculata--Garden Phlox
Ricinus communis--Castor Bean
Tropaeolum--Nasturtium
HRT211 UNIT 062
Arabis caucasica--Wall Rock Cress
Armeria maritima--Sea Pink
Aubrieta deltoidia--Purple Rock Cress
Aurinia saxatalis--Basket of Gold
Lunaria annua--Money Plant
Lythrum salicaria--Purple Loosestrife
HRT212 UNIT 015
Ilex crenata--Japanese Holly
Ilex glabra--Inkberry
Ilex x meserveae--Blue Holly
Ilex opaca--American Holly
Ilex verticillata--Winterberry
HRT212 UNIT 016
Arctostaphylos uva-ursi--Bearberry
Calluna vulgaris--Scotch Heather
Enkianthus campanulatus--Redvein Enkianthus
Erica carnea--Spring Heath
Kalmia latifolia--Mountain-laurel
Leucothoe fontainsiana--Drooping Leucothoe
Oxydendrum arboreum--Sourwood
Pieris floribunda--Mountain Pieris
Pieris japonica--Japanese Pieris
Rhododendron--Rhododendron, Azalea
Azaleas - Hardy species and hybrids
Rhododendrons - Hardy species and hybrids
Vaccinium corymbosum--Highbush Blueberry
HRT212 UNIT 017
Berberis julianae--Wintergreen Barberry
Berberis x mentorensis--Mentor Barberry
Berberis thunbergii--Japanese Barberry
Buxus microphylla--Littleleaf Boxwood
Buxus sempervirens--Common Boxwood
Mahonia aquifolium--Oregon Grape Holly
Pachysandra procumbens--Allegheny Spurge
Pachysandra terminalis
Vinca minor--Myrtle
Yucca filamentosa--Adam's Needle Yucca
HRT212 UNIT 018
Ajuga reptans--Bugleweed
Corylopsis spicata--Spike Winterhazel
Fothergilla gardenii--Dwarf Fothergilla
Fothergilla major--Large Fothergilla
Hamamelis x intermedia
Hamamelis vernalis--Vernal Witchhazel
Hamamelis virginiana--Common Witchhazel
Iberis sempervirens--Evergreen Candytuft
Liquidambar styraciflua--Sweet Gum
Liriope spicata--Creeping Lily Turf
Parrotia persica--Persian Parrotia
HRT212 UNIT 019
Cornus alternifolia--Pagoda Dogwood
Cornus florida--Flowering Dogwood
Cornus kousa--Kousa Dogwood
Cornus mas--Cornelian Cherry
Cornus racemosa--Gray Dogwood
Cornus sericea (stolonifera)--Red Twigged Dogwood
Liriodendron tulipifera--Tuliptree
Magnolia acuminata--Cucumber Tree
Magnolia x loebneri--Loebner Magnolia
Magnolia salicifolia--Anise Magnolia
Magnolia x soulangiana--Saucer Magnolia
Magnolia stellata--Star Magnolia
Magnolia tripetala--Umbrella Magnolia
Magnolia virginiana--Sweetbay Magnolia
HRT212 UNIT 020
Chionanthus virginicus--Fringe Tree
Forsythia x intermedia--Border Forsythia
Forsythia suspensa var. sieboldii--Weeping Forsythia
Fraxinus americana--White Ash
Fraxinus pennsylvanica--Green Ash
Ligustrum obtusifolium--Border Privet
Syringa x chinensis--Chinese Lilac
Syringa meyeri--Meyer Lilac
Syringa patula--Manchurian Lilac
Syringa reticulata--Japanese Tree Lilac
Syringa villosa--Late Lilac
Syringa vulgaris--Common Lilac
HRT212 UNIT 021
Kolkwitzia amabilis--Beautybush
Lonicera fragrantissima--Winter Honeysuckle
Lonicera japonica--Japanese Honeysuckle
Lonicera korolkowii--Blueleaf Honeysuckle
Lonicera maackii--Amur Honeysuckle
Lonicera tatarica--Tatarian Honeysuckle
Lonicera xylosteum--European Fly Honeysuckle
Sambucus canadensis--Elderberry
Sambucus pubens--Scarlet Elder
Symphoricarpos albus--Common Snowberry
Symphoricarpos x chenaultii--Chenault Coralberry
Symphoricarpos orbiculatus--Indiancurrent Coralberry
HRT212 UNIT 022
Viburnum x burkwoodii--Burkwood Viburnum
Viburnum carlesi--Korean Spice Viburnum
Viburnum dentatum--Arrowwood
Viburnum farreri--Fragrant Viburnum
Viburnum lantana--Wayfaring Tree
Viburnum lentago--Nannyberry
Viburnum opulus--European Cranberrybush
Viburnum plicatum f. tomentosum
Viburnum rhytidophyllum--Leatherleaf Viburnum
Viburnum sieboldii--Siebold Viburnum
Weigela florida--Old Fashioned Weigela
HRT212 UNIT 023
Crataegus crus-galli--Cockspur Hawthorn
Crataegus laevigata--English Hawthorn
Crataegus phaenopyrum--Washington Hawthorn
Malus--Crab Apple
Malus Cultivar List A - C
Malus Cultivar List D - N
Malus Cultivar List O - R
Malus Cultivar List S - Z
HRT212 UNIT 024
Prunus americana--American Plum
Prunus avium--Mazzard Cherry
Prunus besseyi--Western Sand Cherry
Prunus x blireana--Blireana Plum
Prunus cerasifera--Cherry Plum
Prunus x cistena--Purple Sand Cherry
Prunus glandulosa--Dwarf Flowering Almond
Prunus incisa--Fuji Cherry
Prunus maacki--Amur Chokecherry
Prunus maritima--Beach Plum
Prunus mume--Japanese Apricot
Prunus nigra--Canada Plum
Prunus padus--European Bird Cherry
Prunus pennsylvanica--Pin Cherry
Prunus sargentii--Sargent Cherry
Prunus serotina--Black Cherry
Prunus serrula
Prunus serrulata--Oriental Cherry
Prunus x 'Snofozam'--Snow Fountains Weeping Cherry
Prunus subhirtella--Higan Cherry
Prunus tomentosa--Nanking Cherry
Prunus virginiana--Chokecherry
Prunus x yedoensis--Yoshino Cherry
Pyrus calleryana--Callery Pear
Sorbus aucuparia--European Mountain Ash
HRT212 UNIT 025
Amelanchier arborea--Downy Serviceberry
Chaenomeles speciosa--Flowering Quince
Cotoneaster acutifolius--Peking Cotoneaster
Cotoneaster apiculatus--Cranberry Cotoneaster
Cotoneaster divaricatus--Spreading Cotoneaster
Cotoneaster horizontalis--Rock Cotoneaster
Exochorda racemosa--Common Pearlbush
Kerria japonica--Japanese Kerria
Physocarpus opulifolius--Common Ninebark
HRT212 UNIT 026
Clematis x jackmanii--Jackman Clematis
Clematis terniflora--Sweetautumn Clematis
Myrica pennsylvanica--Northern Bayberry
Paeonia suffruticosa--Tree Peony
Potentilla fruticosa--Bush Cinquefoil
Pyracantha coccinea--Firethorn
Rhodotypos scandens--Black Jetbead
Sorbaria sorbifolia--Ural False Spirea
Spiraea x bumalda--Bumald Spirea
Spiraea japonica--Japanese Spirea
Spiraea nipponica--Nippon Spirea
Spiraea thunbergii--Thunberg Spirea
Spiraea x vanhouttei--Van Houtte Spirea
HRT212 UNIT 027
Aesculus x carnea--Red Horsechestnut
Aesculus hippocastanum--Horsechestnut
Aesculus parviflora--Bottlebrush Buckeye
Aesculus pavia--Damask Horsechestnut
Calycanthus floridus--Sweetshrub
Hibiscus syriacus--Rose-of-Sharon
Hypericum androsaemum--Tutsan
Hypericum calycinum--Aaronsbeard St. Johnswort
Hypericum frondosum--Golden St. Johnswort
Hypericum kalmianum--Kalm St. Johnswort
Hypericum x moserianum
Hypericum patulum--Goldencup St. Johnswort
HRT212 UNIT 028
Deutzia gracilis--Slender Deutzia
Halesia monticola--Mountain Silverbell
Hydrangea anomala subsp. petiolaris
Hydrangea arborescens--Smooth Hydrangea
Hydrangea paniculata--Panicle Hydrangea
Hydrangea quercifolia--Oak-leaved Hydrangea
Philadelphus coronarius--Sweet Mockorange
Ribes alpinum--Alpine Currant
Ribes aureum--Golden Flowering Currant
Schizophragma hydrangeoides--Japanese Hydrangea Vine
Styrax japonicus--Japanese Snowbell
HRT212 UNIT 067
Allium giganteum--Giant Allium
Allium schoenoprasum--Chives
Begonia x semperflorens--Fibrous Rooted Begonia
Begonia x tuberhybrida--Tuberous Begonia
Convallaria majalis--Lily-of-the-Valley
Hyacinthus x orientalis--Hyacinth
Iris germanica--Bearded Iris
Iris siberica--Siberian Iris
Ornithogalum umbellatum--Star-of-Bethlehem
Tulipa spp.--Tulip
HRT212 UNIT 068
Canna x generalis--Canna
Colchicum autumnale--Autumn Crocus
Dahlia--Bedding Dahlia
Dahlia
Gladiolus hybrids
Hemerocallis--Daylily
Hosta spp.--Plantain Lily
Kniphofia uvaria--Torch Lily
Lilium--Lily
Tigridia pavonia--Tiger Flower
HRT212 UNIT 069
Ascelpias tuberosa--Butterfly Weed
Caltha palustris--Marsh Marigold
Cypripedium calceolus--Yellow Lady's Slipper
Eryngium amethystinum--Amethyst Sea Holly
Erythronium americanum--Trout Lily
Mertensia virginica--Virginia Bluebells
Polygonatum odoratum--Solomon's-seal
Ranunculus repens--Creeping Buttercup
Sanguinaria canadensis--Bloodroot
Trillium grandiflorum--Wood Lily
HRT212 UNIT 070
Adiantum pedatum--American Maidenhair Fern
Athyrium felix-femina--Lady Fern
Athyrium nipponicum 'Pictum'--Japanese Painted Fern
Dryopteris erythrosora--Japanese Shield Fern
Dryopteris marginalis--Marginal Shield Fern
Matteuccia struthiopteris--Ostrich Fern
Onoclea sensibilis--Sensitive Fern
Osmunda cinnamomea--Cinnamon Fern
Osmunda regalis--Royal Fern
Polystichum acrostichoides--Christmas Fern
HRT212 UNIT 072
Ipomoea alba--Moonflower
Ipomoea spp.--Morning Glory
Lathyrus latifolius--Perennial Pea
Lathyrus odoratus--Sweet Pea
Polygonum aubertii--Silverlace Vine
Polygonum japonicum--Japanese Knotweed
Thunbergia alata--Clockvine
HRT212 UNIT 073
Aegopodium podagaria--Goutweed
Asarum canadense--Wild Ginger
Asarum europaeum--European Wild Ginger
Cerastium tomentosum--Snow-In-Summer
Coronilla varia--Crown Vetch
Epimedium x rubrum--Barrenwort
Epimedium x versicolor 'Sulphureum'--Barrenwort
Fragaria--Wild Strawberry, Alpine Strawberry
Houttuynia cordata--Korean Houttuynia
Lamium galeobdolon--Yellow Archangel
Lamium maculatum--Spotted Deadnettle
Lotus corniculatus--Bird's-foot Trefoil
Lysimachia clethroides--Gooseneck Loosestrife
Lysimachia nummularia--Creeping Jenny
Mazus reptans
Waldsteinia ternata--Siberian Barren Strawberry
HRT212 UNIT 074
Aquilegia x hybrida--Columbine
Dictamnus albus--Gas Plant
Digitalis purpurea--Foxglove
Lupinus--Lupine
Paeonia lactiflora--Common Garden Peony
Paeonia tenuifolia--Fernleaf Peony
Phaseolus coccineus--Scarlet Runner Bean
Primula x polyantha--Polyantha Primrose
HUMIDITY FOR HOUSE PLANTS
Humidity For House Plants
HUMUS
Soil Organic Matter
HUNNEMANNIA FUMARIIFOLIA
Hunnemannia fumariifolia--Mexican Tulip Poppy
HUNNEWELL YEW
Taxus x hunnewelliana--Hunnewell Yew
HYACINTH
Forcing Bulbs
HYACINTH BEAN
Dolichos lablab--Hyacinth Bean
HYACINTHOIDES HISPANICA
Hyacinthoides hispanicus--Spanish Bluebell
HYACINTHOIDES NON-SCRIPTA
Hyacinthoides non-scriptus--English Bluebell
HYACINTHUS
Hyacinthus Insect Problems
Hyacinthus Disease Problems
HYACINTHUS X ORIENTALIS
Hyacinthus x orientalis--Hyacinth
HYBRID BUTTERBUR
Petasites hybridus--Hybrid Butterbur
HYBRID POPLARS
Populus x canadensis--Carolina Poplar
HYBRID SAGE