|Rose Perle d'Or|
I ordered Perle online from Antique Rose Emporium and I currently have about 5 different roses from them--all in containers (of course), and all of which have bloomed reliably every year. The company takes orders up until mid-May so there's not much time left. All roses are $18.95 (plus shipping) and you can search on different categories such as shrubs, climbers, cold hardy, and nearly thorn-free. The roses ship as plants (not bareroot) in 2-gallon containers.
Bookshelf: Container Gardening Books