Pruning a tree-shaped hydrangea is crucial for its health and abundant blooming, and it can be done in both fall and spring. However, spring pruning is generally preferred to avoid the risk of frost damage that can occur with autumn pruning.
Tree-shaped hydrangeas can release a lot of sap if pruned too late in the season, which can weaken the plant. Therefore, it’s important to prune before the sap begins to flow. If the buds are already swelling and the sap is moving, it’s better to postpone pruning until fall.
Additionally, tree-shaped hydrangeas produce heavy inflorescences that can cause the plant to bend or even break if the pruning is done too high. A weak root system and thin trunk may not support the weight of the blooms, leading to potential damage.
To avoid these issues, it’s best to perform low pruning, cutting back to two or three pairs of buds. Don’t be afraid to prune the hydrangea back significantly; this encourages the growth of new shoots and results in a fuller, more floriferous plant. Make your cuts about 1 cm above the buds and at an angle.
By adhering to these guidelines, you’ll ensure that your tree-shaped hydrangea is properly pruned in the spring, setting the stage for a lush and vibrant display of flowers.
