My Mophead Hydrangea is falling outwards
I'm more of a vegetable gardener but I have just moved into a new place which has a giant Mophead Hydrangea bush in the front garden.
It's a beautiful bush which has bloomed thoroughly all over. So much so, that is all seems to be falling outwards under the weight of the bloom leaving a rather unsightly 'hole' in the middle of the bush.
I know very little about these, and my research on the internet seems to all say that pruning should be done in the winter to increase the chance of bloom.
This one obviously blooms well and I'm more worried if I start pruning to reduce weight I might have a detrimental effect on it's bloom!
Any advice appreciated. Whether I should prune/trim, and if so how/where.