Why are my hydrangea leaves curling and turning brown?

Also question is, what causes hydrangea leaves to curl and turn brown?

If the margins of the leaves fade from green to grey and then turn brown, the plants were dry for too long. If the petals of the flowers turn brown at the tip, not enough water was applied. Too much sun exposure can cause your hydrangea shrubs to burn on its leaves and blooms.

Beside above, how do you revive a brown hydrangea? In fact, once the hydrangeas start to really look as if they cannot be revived, soak the entire cuttings, blooms and all, in cool water for 45 minutes, shake them off, re-cut and dress the stem, and put them back in the vase looking as good as new.

Also asked, should I cut off Brown hydrangea leaves?

Although some afternoon sunlight promotes blooms, too much sunlight, when coupled with wet leaves, can cause fungal spots. Hydrangeas generally prefer dappled shade. Prune off and destroy damaged or diseased leaves, and clear up any dropped flowers and plant debris from under the shrub.

How do I know if my hydrangea is dying?

It's easy to mistake a dormant hydrangea for a dead shrub.

1. Walk around the hydrangea and inspect it from all sides.
2. Check your calendar to see if winter is approaching.
3. Use your fingernail to scratch the bark off a young outer shoot of your hydrangea, to reveal the wood inside.
4. Tip.
5. References (4)
6. Resources (3)