Why Doesn’t My Hydrangea Bloom?
Many variables can affect the flowering of hydrangeas. The most common reasons are related to variety of hydrangea, location, pruning, and fertilizing.
Location - Bigleaf and oakleaf hydrangeas perform best on the east side of your home. They enjoy protection from harsh winter winds which can cause mature branches to die down to the ground. These mature branches are where the majority of your flower buds will come from.
Pruning - In general, you should not need to ever prune a bigleaf or oakleaf hydrangea. If pruning is necessary, trim them only after flowering in late summer. If dead branches are still in the plant in June, it is safe to trim those out then, as well. Always wait until June to be sure that these seemingly “dead” branches are not going to leaf out. If the old branches survive, that is where the best flowers will be.
Fertilizing - Like all plants, hydrangeas benefit from regular feeding. Holly-tone is a great product to use in the spring and fall to keep the plant healthy. Be sure to avoid over feeding your hydrangea with too much nitrogen, as this will create an abundance of green foliage and very few flowers.