Cardamine yezoensis

Cardamine yezoensis is a pretty perennial forming a low clump about 40 to 50 cm (16 to 20in) in diameter. Its foliage consists of small compound leaves with 5 leaflets, like tiny walnut leaves. It produces a late flowering of small white flowers. This plant has weakly running roots.

Cardamine, (syn. Dentaria), have good and bad plants among them. The worst ones are in the form of Cardamine hirsuta, a little annual pest with white flowers whose seed capsules burst in your fingers if you have waited too long to weed. The best among the species we offer are perennials. They are very cold resistant and thrive in heavy and moist soils. They are among the first to bloom alongside daffodils, daisies, lungworts, and Omphalodes. They will grow in moist, clayey and humus-bearing soil, in the sun or preferably in partial shade. Their foliage fades quite early in the season, but they are not dead: it's their way of protecting themselves against summer heat and drought. The stumps emit slowly spreading stolons or underground rhizomes, without becoming invasive.