My husband sprayed weed killer all over our lawn over a month ago and it seems to have immediately damaged many of my plants, such as my newly sprouting hydrangeas and peonies. They were just beginning to sprout and after the weed killer hit them, the baby foliage shriveled up and just stopped growing. It didn't turn brown or fall off, just seems to be stunted and twisted up. I'm wondering if I should go ahead and prune it back to encourage new growth or just leave it be and let nature take its course. Do you have any answers for me?
Weed Killer Damage
Certified GKH Gardening Expert
The hydrangea, you can prune back and it might put out new growth, but I think the peonies will not do so. So leave the peonies along and hopefully they will recover. In the future, if this happens again, water the foliage of the plants as soon as you realize what has happened to wash off as much of the weed killer as possible.