How to prune agnes rose

Immediately after flowering (late spring to early summer). Cut out dead, diseased, or exhausted canes at or near the base after bloom. Lightly shape the remaining stems, removing no more than one-third overall. Never prune in late summer or fall — it will sacrifice next season's flowers.

Annually after bloom; renovation thinning every 3–4 years. Agnes (a rugosa hybrid) blooms on old wood and flowers only once in late spring or early summer. Pruning at the wrong time removes next year's buds. Remove dead, damaged, or diseased canes right after flowering. Avoid heavy cutting; thin out the oldest canes at the base every few years to keep the shrub open and vigorous.

Cut out dead, diseased, or exhausted canes at or near the base after bloom. Lightly shape the remaining stems, removing no more than one-third overall. Never prune in late summer or fall — it will sacrifice next season's flowers.