I think I have the remnants of one of those I got at a garden store over 10 years ago. Goodness time flies!! They came in purple, white, and white with purple throat and sold for something like $6 and I've not seen them for sale since. I don't remember their being identified, yet I think somehow I remember figuring out or having someone tell me that they were a cross between biggibum and compactum--that sounds familiar.