Protect your plants. Roses survive winter easier if protection (in the form of a 1- to 2-inch layer of mulch, leaves or evergreens at the base) is applied as soon as the ground freezes. You don't need rose cones. If there's little snow cover and frigid conditions, roses may die back to the ground but should regrow in spring. If mulched, Knock Out roses and some Easy Elegance roses are hardy to Zone 4.
Pictured: Blushing Knock Out
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