Regan's selling Colette as an own-root rose. I don't know why.
I hope they don't stop selling grafted roses. I'd rather get one from Palatine, but that's my subjective choice. By September you'll know whether Palatine's carrying Colette this year. If not, you can order it from Regan after that. Regan doesn't send the roses until after the start of the new year anyway.