United Kingdom 
why is my Hydrangea not producing flowers
2 Apr, 2010
Answers
Pam's on the right track - if you've been pruning at the wrong time, you've cut off the flowering growths. Should be pruned lightly, removing dead growth, in spring once new growth has started, usually mid April. If you've not been cutting it wrongly, where is it - anywhere near trees? In a pot?
2 Apr, 2010
have you been pruning it?
2 Apr, 2010