How to Protect Roses in Winter
In cold climates, a little autumn preparation carries roses safely through winter. The aim is to keep the plant consistently cold and insulated — not to keep it warm.
Preparing roses for winter
As nights turn cold, stop feeding and let the plant harden off. After several hard frosts have sent the rose into dormancy, it is time to protect it. Avoid a hard fall prune, which can stimulate tender growth; simply shorten very long canes so winter winds do not whip them.
How to protect the plant
Mound eight to twelve inches of soil, compost, or shredded leaves over the base of the plant to insulate the crown and graft. In very cold regions, add a further layer of mulch or a rose collar. Climbers can be wrapped in place or, where hardy enough, left tied to their supports.
Uncovering in spring
Remove winter protection gradually as the weather settles and buds begin to swell, so the plant is not shocked by a late cold snap. Then prune, feed, and begin the new season.