A while back I tried cultivating several plants of the integrade form of D. carolinianum / virescens. I planted it in my prairie bed and it bloomed that first year but I haven't seen it since. This spring I got some more D. carolinianum. They grew for a while, then disappeared without blooming. Today I read that the species is mid-summer dormant, so now I'm wondering if my plants are actually dead or just dormant. (I don't remember exactly where they were planted to be able to check.) Is anyone on the list aware of any special needs for this species? I grew (grow?) them in a mesic, full sun, setting along with my Helianthus, Asclepias, Solidago, Veronicastrum, Silphium, and other prairie forbs. Tentatively I've thought they're just short lived plants that have not reseeded. But I am not very experienced with this (or any) Delphinium species. And until today I was unaware of this summer dormancy. I don't know if this is important, but I also lost several Manfreda virginica that I transplanted in the same prairie bed as D. viriscens. The Manfreda also died out within 1 year. That's odd because I've never lost Manfredas in other parts of my yard. It could also be that I over-coddled or under-coddled them when first transplanted. I'm stumped. But I love this species and would love to get it established en masse. The PBS wiki does not have any info on D. carolinianum. Thanks, Dennis in Cincy