Thank you Steve and Toni. There's another one that I used to grow that I would like to grow again. Chamblees found a pink sport of Sea Foam and sold it for a few years as Pink Sea Foam. They say they no longer carry it in a 1 gallon size, and only have the larger size left, and they don't ship the larger size. When those are gone, they're gone. ("discontinued") I bought one for a client and hers is beautiful and healthy, so I might see about getting a cutting from her.
On the other hand, while the hunt is fun, I do have enough to take care of, with almost 400 rosebushes, and too-many-to count daylilies, iris and hosta. I plowed up another 10' x 80' bed last week, and that space is already spoken for.