Leicestershire,
United Kingdom 
The Hydrangea in the picture has developed black patches on its leaves, many of which are also curled. It does not suffer from lack of water. If anyone knows what it is and how to cure it, I'd be very grateful.
Thanks in advance, Bob Craggs.
19 Oct, 2016
Answers
It looks like frost damage to me.
20 Oct, 2016
Is this plant in a sunny spot, and is it in a pot or in the ground? How long have you had it?
19 Oct, 2016