Well this is my favorite rose topic, "cane hardy" roses...meaning rose canes that don't die back in harsh winter climates. I live in rural Z5 but it might as well be Z4.
Almost every large flowering climber dies back to the snow line so in my pursuit of hardier roses I have found some wonderful gems but be forewarned aside from Rugosa's and some Old Garden Roses, most are once bloomers...BUT...like I always say, I wouldn't be without my OB roses anymore than I would be without my once blooming peonies, lilacs, iris, etc. etc.
My ultimate favorites are Alba's which reign supreme when it comes to fragrance and David Austin's most under-rated glorious beauty...Constance Spry. Huge, fluffy blossoms that are highly fragrant will knock your socks off.
Pict. Constance Spry
I'm sooo ready for my dirt manicure!