The most common reason for a lack of flowers on hydrangeas is that they were pruned at the wrong time of the year.

Find out which kind of hydrangea you're growing before you attempt to prune the plant in the fall. If you have these types, ...

Hydrangeas not blooming may be due to improper pruning time, winter damage, or too much shade. Bigleaf and oakleaf hydrangeas bloom on old wood, so pruning them in winter removes flower buds. Smooth ...