Looks like it is doing very well for you Arlene, and I am glad you are enjoying it.
'Twin Lakes Diva' is a 4 year old seedling of mine that I have long lost it's background info and Arlene, you have the only one of it. It is a gift to a very special person and good friend.
I sure hope it continues to stay a mini, it is vigorous so I bet it will make a good size mound and I don't think the leaves will get much bigger. Being kept in a 16oz cup for it's life and now it's growing in the ground it may suprise me.
Most hostas that are available for sale are not registered with the AHS and don't need to be to be introduced for sale. All the registration is for is an official record of what the plant is and who it's from, and that can be incorrect too, it has nothing to do with having it available for sale. Example: how many Ron Livingston plants are intro'd for sale and he only has 3 listed on the registry and only one of them is his own plant. Also there are more registered plants that will never be for sale than are or have been at some time.
http://www.hostaregistrar.org/...