Blue Princess Holly Berry Bush

Question

My Holly berry bushes have black spots on the undersides of the leaves. This will be the third summer for them. I have never pruned them. What do I do?

Answer 1

These articles should help: https://www.gardeningknowhow.com/ornamental/shrubs/holly/trimming-holly-bushes-how-to-prune-holly-bushes.htm
https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-problems-holly-leaf-spot-or-holly-tar-spot.htm