Arborvitae in June: monthly care

Arborvitae requires minimal pruning, but regular light trimming keeps hedges tidy and encourages dense growth. Prune in May, June, or September—avoid cutting during frosty weather or high summer heat. Late spring and early autumn are ideal because the plant is actively growing and will recover quickly. Use sharp bypass secateurs or hedge shears. For formal hedges, trim back new growth by about one-third, cutting just above green foliage. Never cut into old, brown wood; arborvitae does not regenerate readily from bare stems, and you risk leaving permanent gaps. Always leave some green growth on every branch. If you're maintaining an established hedge, a light trim once or twice a year—typically in late May and again in September—is sufficient. For specimen trees, pruning is largely unnecessary. Remove any dead, damaged, or diseased branches as soon as you notice them, cutting back to healthy wood or the main trunk. If a leader (main central stem) is damaged, select a strong lateral shoot, tie it vertically to a cane, and train it as the new leader. Thin out any crossing or rubbing branches to maintain good air circulation and an attractive shape. Avoid heavy pruning or drastic reshaping. Arborvitae responds poorly to hard cutbacks, and recovery is slow. If a hedge has become overgrown and bare at the base, it's often better to replace it than attempt renovation. Light, regular attention from an early age is far more effective than infrequent severe cuts.