A very familiar annual for many people, forget-me-nots (ht 30cm) with their tiny, pale blue eyes of bloom are irresistible when they first open in spring. I love to see swathes of these growing beneath trees and shrubs - though by the end of the season, I am equally glad to see the end of them in late October, when I pull them all up, as they become quite straggly after a while and their seedpods stick to clothes and animals in their determination to spread themselves around the garden. There is an unusual white form that does quite well in Sydney, and even more rarely, a pink version. There are some named cultivars which promise to be more compact than the original species, but I have never tried them.
Forget-me-nots will grow in very ordinary soil and grow quite well in part shade. They are attractive grown with spring bulbs, forming a hazy background. The plant originated in Europe. They belong to the family Boraginaceae.