My garage has ivy growing on top of it. I generally like it and it's lovely to see the bees and then the birds (especially blackbird) benefiting from it when not much else is flowering/fruiting.
However it is now out of control and I need to cut it back a bit. When is the best time to do this? If I do it now will it grow back nicely? Is it too late? I have a feeling that birds nest in it...