Zuzu - Palatine ships roses grafted on multiflora .. would those work with Mr. Roly's nematodes? I had to look up what a nematode is.. another problem I don't have thankfully.
Roly - If Zu says that multiflora would work, check out Palatine Roses (
http://palatineroses.com/). It's getting late in the season for ordering roses. Ordering usually starts in September, so a lot of places either will no longer be taking orders or are completely sold out of really cool stuff.