Hi Ross, yes I do have Ol. douglasii in both purple and white. The white is just budding up now and I could let you have a bit later in the year if you'd like it. It's very beautiful. I lost my big purple but have quite a few seedlings (2nd year) in two forms, from Ron Ratko. They need a couple of years yet I think. I don't think I'll bother with the Oxalis. It looks, in the line drawings pretty close to O. polyphylla which I do have.