Posted: 29/05/2017 at 13:54
I would get those two out from the Hydrangea, in a year or two the Hydrangea will be very big and you won't see them, they are best planted together, so I would have put the whole lot of 8 in a small space.
Mine seem to have multiplied here, the drumstick type are a nuisance as they seed everywhere. I don't like them but they get absolutely covered in bees, so that's why I leave them.
As said before, deeper the better, they need to be deep to take the weight of their heads.