Pruning Rock rose

Zonneroosje benefits from a light trim in July or August, immediately after the main flush of flowers has faded. This timing is important: pruning after flowering encourages a second, smaller flush of blooms later in summer or early autumn, keeps the plant compact, and prevents it from becoming leggy and sparse in the centre. Use a pair of sharp hand shears or secateurs. Trim back the flowered shoots by about one-third to one-half, cutting just above a set of leaves. Focus on removing the spent flower stems and any straggly growth, but avoid cutting hard into old, woody stems at the base—zonneroosje does not regenerate well from very old wood. The aim is to maintain a neat, domed shape and encourage fresh, bushy growth. If you miss the July–August window, you can tidy the plant lightly in early spring (March), removing any winter-damaged or dead shoots. However, this won't stimulate a second flowering, so the post-flowering trim is more beneficial. Do not prune in autumn or winter, as this can leave the plant vulnerable to frost damage and rot. Zonneroosje is evergreen, so it retains its small, grey-green leaves year-round. Deadheading individual spent flowers during the flowering season is not necessary—the light shearing in summer deals with all the faded blooms at once. If the plant becomes woody or bare in the centre after several years, it's often easier to replace it with a young plant than to attempt hard renovation pruning, as old specimens rarely respond well.