Here are my 3 D. laevifolium. The 2 red ones are very, very similar except for bloom size which makes me think they are probably siblings even though I purchased them from different sources. When people come into my greenhouse they almost invariably ask "which is your favorite" and I point to the pink laevifolium. Although it is at peak bloom right now it always has at least a few blooms on it year-round. I grow them mounted, intermediate, and almost full sun in the morning but shadier as the day progresses. No winter rest for these. I will be looking for some different color forms to add to these.