The species described feature exquisite, typically blue springtime flowers, tiny but profuse. Grow easily and densely as ground covers. Do best in cool, moist areas, as in woodland gardens, at pond edges, along stream banks. Not usually browsed by deer.
M. palustris 'Southern Blues'. Perennial. This forget-me-not tolerates more heat than most. It spreads like a ground cover without taking over, and blooms from spring into summer. Grows best in moist garden soil or on the edge of a pond.
M. scorpioides. Perennial. Native to Europe, Asia, North America. This species is similar in most respects to M. sylvatica, but it grows a little lower, blooms even longer, and has roots that live over from year to year. Flowers are about 14 in. wide; they come in blue, white, or pink, usually with a yellow or white eye. Shiny, oblong, bright green leaves. Plant spreads by creeping roots.
M. sylvatica. Annual or biennial. Native to Europe. To 612 in. high, 2 ft. wide. Soft, hairy foliage; basal leaves reach 4 in. long, while those set higher on stems are 122 in. long. Pure blue flowers with a white eye are in. wide, set loosely along top portions of stems. Blooms and seeds profusely for a long season, beginning in late winter or early spring. Self-sows and will persist for years unless weeded out. Often sold as M. alpestris. Improved selections include 'Bluesylva' and 'Rosylva'.