Michigan State University Extension
Ornamental Plants plus Version 2.0 - 00000832
01/01/98
Height: 6 ft Spacing: 12 in Type: annual Flowers: Blue, pink, purple, red, white
Comments: Sweet Pea often produces fragrant flowers but not always. The height listed is for vining types, bush types will usually grow to 30 inches. The plants like cool temperatures so may suffer during hot, dry summer weather. The plants need regular watering in summer for best growth. A mulch will help keep the roots cool. Remove old blossoms as they fade to keep the plant flowering. The plants are a good source of cut flowers. For vining types, tie each stem to a support and remove tendrils and side shoots. Sweet Pea prefers a cool, moist, well-drained soil rich in humus. Gardeners with alkaline soil may find the plant a suitable choice.
Propagation: The seed germinates in two weeks at 55 degrees and soaking may hasten germination. Plant the seed two inches deep and thin to six inches apart when the plants are three to four inches high.