Q.How To Stop Hydrangeas From Spreading?
I planted hydrangeas in the corner of my yard and now hydrangea plants are popping up all over the yard up to 20 feet away and on the other side of the fence in the neighbor’s yard. Didn’t know they were so invasive… How to stop them from spreading?
Certified GKH Gardening Expert
Try deadheading so they won't go to seed. If they are spreading by rhizomes underground, they need to be dug out each year.