Anonymous wrote:We have to chop ours every year. They grow so quickly. Unfortunately they don't flower much anymore.

Some hydrangeas bloom on "old wood" and some on "new wood." If yours are the "old wood" kind, they set their buds in the summer/fall and so if you prune them in winter/spring, you'll have cut off the flowers for the following spring/summer. You want to prune those just after they bloom.

Some, like limelights or annabelles, bloom on "new wood" so you can cut them back in late winter and still have flowers in spring/summer.

You can try it, but if they're limelights they grow pretty fast so it might be easier and just as good to plant new ones.

My friend took some huge hydrangea from my yard in fall and they are thriving in his yard now.

What kind are they? I've had good success transplanting 3yo Endless Summers and a 3yo Limelight. They seem happy in their new locations. I trimmed them back pretty hard at the end of summer and transplanted in the fall, with plenty of compost and deep watering through their first fall. If you're moving them into a better spot, they should thrive.

We have to chop ours every year. They grow so quickly. Unfortunately they don't flower much anymore.

I have hydrangeas that are about 5 feet tall now. Anyone had luck transplanting these, and any advice? They're so big, I wonder if the amount of work involved would be worth it, and if they'd even make it.