This one is getting entirely too much shade and not enough water. It's right up against the foundation of the house, too, so it's going to be a bit difficult to dig out. And it may have to go into a raised bed, as my garden area is parked on top of a sub-irrigated field. I may just divide it and move part of it over away from the lilac and farther out from the house, and put another bit in the new garden area I'm trying to develop. I would think that since it's at least 11 years old, it should be ready to be divided?