My Peggy Martin is still tiny after 2 years also. I bought 2 from Chamblee, planted one in my yard, one in a client's yard. Hers is enormous because she has in ground sprinklers and waters constantly. Mine relies on rainfall for the most part. I forget to feed anything in that part of the yard, too.
Toni, why don't you order Austins from Austin roses? If you order early in the spring, they always run a deal where if you buy 3, you get one free, or maybe it's buy 4, get one. With shipping costs, they come to about $20 apiece. Both own root and grafted do great here. The only one that is struggling is Summer Song from Palatine. Mine doesn't even look like the same rose that Sue grows.
I wish Arthur Sansal were available here . Maybe in a few years....it's a beauty, for sure!