Hydrangea

Question

I have an Annabelle hydrangea; it is planted where it gets full sun til afternoon. I have given it bone meal last fall and this spring. It is several years old. It gets the bloom heads formed but never the white flowers. Any suggestions?

Answer 1

Have you pruned the hydrangea? Over pruning can be a cause.
Also a late spring freeze is a common reason a hydrangea does not blossom.
Lengthening warmer days usually will coax buds into opening.

Since you've added Bone Meal and are still having the same results it might be a good idea to have your soil tested.
Your local county extension office can help you with a test.

Here is a couple of links.

https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm

https://www.gardeningknowhow.com/extension-search/