Michigan State University Extension
Ornamental Plants plus Version 2.0 - 00000026
01/01/98
Hardiness Zones: 3 to 7 Height: 50 ft Spread: 50 ft Form: rounded Type: deciduous tree Annual Growth Rate: 12 to 18 inches
Comments: Norway Maple's dense shade and shallow root system provide stiff competition for lawn grasses. Surface and girdling roots are maintenance difficulties. The tree is easily transplanted and has yellow flowers and fall color. Often used, perhaps too often, as a park or street tree. Wrap trunks of young trees to help prevent frost crack formation.
Cultivars:
'Alberta Park' - A vigorous tree with an oval crown.
Perhaps more resistant to frost cracking than other
cultivars.
'Bailpride' (Oregon Pride Maple) - The leaves are
deeply cut and turn gold-bronze in fall. The tree
has performed well at the University of Minnesota
arboretum trials.
'Cleveland' - Fast growth and compact branching are
combined with tolerance to summer heat. The fall
color is yellow.
'Columnarbroad' (Parkway TM Maple) - An oval tree with
a good central leader. Reported to be verticillium
tolerant and useful in urban situations.
'Columnare' - A narrow, upright tree with yellow fall
foliage color.
'Crimson King' - The most common purple-leaved Norway
Maple. It grows more slowly than green-leaved types.
'Crimson Sentry' - A compact, dense, upright tree with
purple foliage. The height will be 25 feet and the
spread 15 feet.
'Deborah' - The foliage is reddish-purple in the
spring becoming dark bronze-green in the summer.
This vigorous tree forms a strong central leader.
'Dissectum' - A small, bushy tree with deeply cut
leaves that resembles a Japanese Maple.
'Drummondii' - The leaves are edged with white.
Individual branches may revert to green and must be
pruned out.
'Emerald Queen' - A fast-growing tree with a straight
trunk and good branching tendencies suitable for use
as a street tree.
'Ezestre'(Easy Street Maple) - A bud sport of
'Columnare' with a faster growth rate and slightly
wider, pyramidal form.
'Fairview' - The foliage is reddish purple when young
and turns gold in the fall. Narrower and more
upright than 'Schwedler' or 'Deborah'.
'Globosum' - A dense, compact, fifteen foot tree with a
globe-shaped head. The fall color is yellow.
'Jade Glen' - A fast-growing cultivar forming a
broader, more open canopy than most selections.
Reported to be verticillium tolerant.
'Lamis' (Crystal) - Selected by Bailey Nurseries for
its vigorous growth, straight trunk and improved
branching habit, especially when young. Reportedly
better branching than 'Emerald Luster' with a lighter
colored leaf tip.
'Medzam' (Medallion TM) - A broadly oval tree
developing a dense crown 45 feet tall and 40 feet
wide.
'Pond' (Emerald Luster TM) - A vigorous selection with
a rounded canopy.
'Princeton Gold' - A selection with bright yellow new
foliage borne on an oval growth habit.
'Royal Red' - Similar to Crimson King with its purple
foliage but considered to have better cold hardiness.
'Schwedleri' - The new foliage is bright reddish purple
turning dark green with age.
'Summershade' - A fast-growing tree with a rounded
crown and lighter green foliage than other cultivars.
Considered to be more heat resistant.
'Superform' - Selected for its uniform branch angle and
overall symmetrical shape.
'Variegatum' - An upright, rounded tree with leaves
variegated with white during the growing season,
turning yellow in the fall.
References for Cultivars: Bailey Nurseries 1997, Lake County Nursery 1997, J. Frank Schmidt and Sons 1997, Princeton Nurseries 1997, Monrovia Nursery Company 1997, Ray Wiegand's Nursery 1997, Sheridan Nurseries 1997, Moller's Nursery 1997, Studebaker Nurseries 1998.
Campanula coclearifolia
Hardiness Zones: 4 to 10 Height: 6 in Spacing: 12 in Type: herbaceous perennial Flowers: Blue
Comments: This easily grown plant is 4- to 6 inches tall and has blue or white flowers. This bellflower prefers partial shade and a gritty soil with a pH of 6 to 7.
Propagation: Division may be done in spring or fall. Seed may be planted outdoors in late spring or early summer with flowering occurring the following year. The seed is fine and may be hard to handle. Seed planted indoors germinates in 2 to 3 weeks.