This might be a little late considering the thread is from way back in April. I had the same question and contacted Dewar via email. They responded and told me that Dr. Huey is the primary rootstock they use. I have two Roses purchased from Lowe's that came from Dewar (Olympiad and New Year). They seem to be doing well in containers.
This post was edited by jamesthepeach on Mon, Nov 11, 13 at 23:12
jacqueline9CA
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