Pruning barberry bushes
I need to prune Burberry bushes that are overgrown, to tall for hedging. Fall and winter is ok, but how much do you cut back?
Certified GKH Gardening Expert
These are invasive in most areas. They won't be particular about how much that you cut back. Just cut the the height and shape that you want, and it will grow back from there.
This article will give you more information on their care: https://www.gardeningknowhow.com/ornamental/shrubs/barberry/barberry-shrub-care-tips.htm