Ideas for future roses = Sam Kedem Nursury in Minnesota has a good list of roses that are hardy for them. Many easy elegance roses on list. He has them listed by hybridizer. So those are listed as Ping Lim roses. Has some very hardy climbers listed and a few I didn't know where that hardy. He doesn't sell them mail order but nice list to check out. Westerland in not on their list for Minnesota. I'd like to grow Party Hardy.
Then there's Ole, Lena and Sven developed by Kathy Zusek in Minnesota. I think Ole is very disease resistant. Northland Rosarium also carries many zone 4 roses. Some hardy to zone 3.