I've had a hydrangea for about 7 years.
It bloomed beautifully for the first five summers but not at all this year or last.
I have never pruned the blossoms.
|I suspect weather had something to do with the non-blooming if your hydranges have bloomed reliably in the past. Hydrangeas develop flowers on the new growth of the season. While it's too late to encourage blooming this year you can certainly encourage it by pruning your plants back early next spring, just as the leaf buds begin to swell on the stems and branches. Cut your plants back by about a third and the new growth they develop should produce flowers. Enjoy your hydrangeas!|