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, it's safe to do so.

To prune a climbing hydrangea, shorten any straggling shoots, cutting back to a lower pair of healthy strong buds. Steer clear of the top part of the plant, as this is where most of the flowers will ...