Boxwood in June: monthly care

Boxwood tolerates hard pruning and responds well to regular clipping, which is why it's so popular for formal hedging and topiary. The main pruning windows are May to June and September. Avoid pruning earlier in spring when new growth is soft and vulnerable to frost, and don't prune after early autumn, as fresh growth won't harden off before winter. For formal hedges and shaped specimens, clip in late May or early June once the first flush of spring growth has hardened. A second trim in September tidies up summer growth and keeps shapes crisp through winter. Use sharp, clean hand shears or hedge trimmers; blunt blades tear the foliage and leave brown edges. Aim to remove only the season's new growth—typically 5–10 cm—rather than cutting back into old wood unless renovation is needed. If your boxwood has become overgrown or misshapen, it can be cut back hard into older wood in late April or early May. Boxwood regenerates reliably from old stems, but recovery takes a full season or more. Feed well after hard pruning to encourage strong regrowth. For informal, naturalistic plantings where you want a looser shape, light trimming once a year in late spring is sufficient. Remove any dead, damaged, or crossing branches at the same time. Always clear up clippings promptly—fallen leaves and debris trapped inside the canopy encourage fungal problems, particularly box blight. Disinfect tools after pruning, especially if blight is present in your area, to avoid spreading spores between plants.