Vigorous, sun and heat tolerant, Dicentra 'King of Hearts' (Fern-Leaf Bleeding Heart) is a compact, bushy perennial noted for its arching sprays of large, deep rose heart-shaped flowers. Blooming over a very long season extending from late spring to early fall in cool summer climates, the flowers dangle gracefully above a sumptuous foliage mound of feathery, finely-divided, blue-green leaves.