Prune Knockout roses heavily in late winter or early spring as new growth begins. Lightly deadhead and shape in late summer, stopping two months before frost. For annual pruning, cut back one-third of ...

Winter is here, thus giving gardeners plenty of time to plan for the upcoming months and specific maintenance activities.

Roses, long a gardener's favorite and our country's National Flower, still suffer from the reputation of being hard to grow. In reality, many modern roses like 'Knock Out' are robust, long-lived, ...