Looking for greater vigor, we introduced many of the hybrid blue Corydalis cultivars to the US from abroad and have tried many. Of all those we have grown, this Dan Hinkley collection has proven to be the most durable, with excellent garden worthiness, producing masses of icy blue flowers early. It does go summer dormant here in the heat/drought, but unlike so many, it survives. Best in light shade and moist. An excellent cut flower. To 2’, Z6, quart pot