How to grow Corydalis (kor-e-day-lis) From the Greek korydalis, a crested lark, a reference to the shape of the flowers (Fumariaceae). Hardy annuals and perennials, widely distributed throughout the temperate regions of the northern hemisphere. Perennial species cultivated                C allenii, 3-4 inches, pink and white flowers, spring. C. cashmeriana, 6 inches, blue flowers, spring. C. cheilanthifolia, 10 inches, yellow flowers, summer. […]