My hydrangeas are about 25-30 years old. They grow very tall and droop over, especially after a rain; then they never raise up again. Should I cut them back drastically so they won't be as tall? Or do I need to replace them with newer plants? They still bloom nicely but many of the blooms droop on the ground.
Hydrangeas Grow Too Tall
Certified GKH Gardening Expert
You do not need to replace them with new plants. I would highly recommend pruning them instead. The following article will give you some general information about pruning hydrangeas:
This next article will give you pruning information specific to your variety of hydrangea: