Forget me nots: There are approximately 200 species in the genus, with much variation. Most have small, (1 cm diameter or less) flat, 5-lobed blue, pink or white flowers with yellow centers, growing on scorpioid cymes. They bloom in spring. Leaves are alternate. Popular in gardens, forget-me-nots prefer moist habitats and where they are not native, they have escaped to wetlands and riverbanks. They can tolerate partial sun and shade.~ Wikipedia
from 20 Perennial Flowers: Forget-me-not (Myosotis sylvatica) Must-haves for lightly shaded woodland gardens, these much-loved plants bear tiny but exquisite blue flowers in spring in mild climates. ‘Baby Blue’, a hybrid from Proven Winners, has true blue flowers and grows 6 to 8 inches tall.