Dunno!- You see , Dr Greisbach sends them to us as seed and so does Charley Kroell ....i have so many, named and un-named seedlings here, its not funny,..,My garage lily pot parking now comes in at about 60,.,.and still a few warm days to come,so, no doubt another 60 will crawl in there over the next few days,.,...Its hard work,in this heat!!!