My butterfly bush is showing about 2 inches of growth now. Can I go ahead and prune them? I live in Havre de Grace.
Harford County Maryland
Yes, you can prune now, though technically you don't ever have to prune.
Since butterfly bush has turned out to be a non-native invasive plant in Maryland, do not compost parts with seeds, or dispose of seeded parts on-site. Bag and put out with the trash.