Sow Sweet Rocket seeds in the spring for a perennial that will flower profusely. Hesperis Matronalis is commonly called Dame’s Rocket or Sweet Rocket. The Hesperis Matronalis plant likes moist conditions for optimal growing, but it is adaptable. Cannot ship this flower seed to Colorado. Sweet Rocket is a showy, short-lived perennial with large, loose clusters of fragrant flowers that bloom from May to August on flowering stalks 24 - 48 inches (60 - 120 cm) in height. The heavenly clove-like scent will attract lots of bees, butterflies & birds. This member of the mustard family has flowers with four petals. Many flower seeds are produced in the flower clusters. SOWING: Sowing: April - June Season: Biennial Height 24 - 48 inches (60 - 120 cm) Bloom Season: Summer Bloom Colour: White, purple, pink Environment: Full sun to partial shade Light Required: Yes Depth: Cover seed with topsoil thinly after sowing Moisture: Keep soil slightly moist but not wet Plant Spacing: 12 inches Ideal for: cottage garden, meadows, beds & borders 1500 Seeds - Sweet Rocket Mix Hesperis Matronalis Biennial Flower Dame’s