Fine Pruning Boxwood that become too overgrown are more susceptible to disease such as boxwood blight. We punch air holes into the plants, which not only allows them to take a natural shape, but lets them produce healthy interior growth. Roses need regular pruning and thinning to avoid disease and to ensure optimal bloom. A healthy rose bush has fewer canes and is pruned back every winter. Hydrangea tree that has gotten too large for its space. After pruning in late winter. This tree bloomed heavily the following summer. Boxwood pruning before.... and after! Espaliers require a special form of pruning. This apple tree espalier is much happier when it's less hairy. Not all hydrangea are pruned the same! Our crews know the correct time to prune your hydrangeas for lush blooms.