Powerful rain storms will damage even the strongest rosebush. Rain can break stems, shred petals and even change the soil structure around the growing plant. Fortunately, roses tend to be hardy and will rarely die out completely after a storm. Increase the chances of new, healthy growth with some careful pruning and general care. If the forecast in your region is for further heavy downpours, it might be worth waiting until the storm passes before making your repairs.
Remove broken and damaged flowers to make way for new growth. A few damaged petals is fine, but cut off hanging or seriously affected roses.
Prune damaged canes and stems with pruning shears. Wait until the last frost date of the season if the plant was damaged in winter, according to Ohio State University Extension. Trim stems back until you reach a healthy bud or undamaged leaves. Cut at an angle.
Check the soil around the base of the plant. If muc has washed away from the trunk, pile up more garden soil around the plant base for support. Avoid standing on damp soil, as this will compress the ground, ruin drainage or damage roots.
Replace any surface fertilizer granules. The rain will wash away any scattered granules. Fertilize in early spring using 5-10-10 fertilizer, according to Ohio State University Extension.
Water the rosebush again only when the top few inches of soil around the plant is dry to the touch.