Burke's Nursery identified Olympic Star as a John Bleck hybrid. Somewhere online I found that the cross is {(descoingsii x calcairophila)...Read More x bellatula} x rauhii. This cultivar has survived outside in sheltered conditions from freezing temps while other cultivars did not.
Burke's Nursery identified Olympic Star as a John Bleck hybrid. Somewhere online I found that the cross is {(descoingsii x calcairophila)...Read More