The plant is practically covered in blooms. Color can vary and there are named cultivars. The one usually received is a soft rose-lavender or purple. Be sure and buy a bunch for they look best in drifts of six or more. C. ochroleuca closely resembles C. lutea in foliage and size.
Blooms are a pale cream, the petal tips a darker butter-yellow.
Mine are growing in a rich alpine mix and performs well. It seems to perform best in dry shade among rocks and crevices. Coming into bloom in mid-March it will continue to bloom until it is hit hard by a freeze in October or November. There are quite a few other species of Corydalis that show up from time to time on seed lists and collectors catalogs.