Purple fountain grass
I put weed and feed on my lawn and now my purple fountain grass is turning brown. Did the weed killer kill the fountain grass?
Certified GKH Gardening Expert
Ornamental plants, including flowers, shrubs and trees, may be sensitive to the herbicides in weed and feed products. For example, 2,4-D and MCPP can cause leaf cupping, stunted growth and may kill your plants.
To keep the product away from desired flowers, trees and fruit and vegetable plants, avoid applying when it's windy or if rain is predicted within 24 hours.