Rodger asked, The type form and var. leichtlinii seem to have done well and formed >a reasonable number of flowering size corms, but var. violcacea >formed only what you might call "half size" corms. In my experience, violacea is markedly less hardy than the typical T. cyanocrocus. I don't think there is any important difference between ssp. cyanocrocus and ssp. leichtlinii; judging from the description of the rediscovered wild populations, they are just color variants, the latter having more white in the throat. I grow mine in a mix with a lot of pumice (including fines), which is what they would have in the wild; it provides ample iron and potassium. Jane McGary