How do I get my hydrangeas to bloom?
I've had them 3 years. Were blooming when I set them out, but never bloomed again. They are growing and leaves are healthy and beautiful.
Certified GKH Gardening Expert
You may be lacking phosphorus. If there is a lack of phosphorus in the soil, plants will have little to no blooms. You can either use a phosphorus rich fertilizer or add some bone meal to the soil. These articles may help as well: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm