i have a number of hydreageas like the attached pic. Can someone outline what I need to do to maintain these over winter? Do I need to prune? If so when and how?
note it looks dry as I have been away for a week and didn't get watered!
It is definitely looking parched and starved. First thing to do is soak that pot ion a bucket of water till no further bubbles appear and apologise profusely all the while.
Then find a pot at least twice as big and preferably 3. Hydrangeas of that size need a steady supply of water and won't get it in a teeny pot.
The flowers look like paniculata of some sort (cone shaped) which means they flower on new wood so no need to prune until next spring when new growth starts. You can then cut back each branch to the lowest pair of buds and give it a generous handful of pelleted chicken manure and, late on, occasional drinks of tomato feed between then and the end of June to encourage flower formation.
Great reply! Would you suggest I continue to water this throughout winter?
That's an amazing (but drought stricken) Hydrangea ; yes , keep wet throughout the winter , and as Obelixx says 'GET A BIGGER POT' ,