Gardening in Northern Wisconsin (Zone 3-4) requires roses proven hardy without winter protection. Choose varieties that survive naturally so you can enjoy them rather than worry.
Pickering Nurseries (Canada) ships to the US and carries these varieties. The Canadian Rose Society also provides a hardy rose list: crs_hardy.html.
Select roses rated for your zone that don't need cages or special winter protection. Enjoy roses, don't coddle them.
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