hydrangea plant has lots of leaves but no blooms

Question

planted 2 hydrangea plants in my garden same time same place last year spring.one is blooming nicely the other one is not blooming at all although it has lots of leaves.what can be wrong? also, shoud i prune the stalks a little or not? i didnt prune them yet. thanks for your help.
i also have some azaleas planted which are not doing too well..how can i help them grow better? thankyou

Answer 1

Hydrangeas benefit from pruning, at least deadheading. It depends on your variety, when and how to prune. If you have one that blooms on old wood (buds formed previous summer), then if you had a late frost, the buds could have been nipped. That means no blooms that year. Those are the mophead hydrangeas. They need to be pruned soon after blooming to avoid cutting off the developing buds. There are other varieties that bloom on new wood, so they are less affected by late frosts or inappropriate pruning. Then some bloom on old and new wood.

https://www.gardeningknowhow.com/ornamental/shrubs/shgen/pruning-old-and-new-wood.htm
Here's another article that may help:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm

As to your azalea, there's too little info here to comment, but this article will give you lots of tips on how to grow them: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azaleas-noteworthy-shrubs-for-any-garden.htm