Q.Will my Mahonia recover?
I hired, I thought, a professional to cut my Mahonia. It has been cut right down. It was very healthy but now I am left with stumps and a few bracts are trying to grow. Will it recover? It was 6 years old when hacked down. Is there anything I can do to help it to recover? Your advice would be appreciated.
An annual prune will do your Mahonia good. It will keep the plant to a reasonable size prevent crowding the centre. Mahonia can be pruned at any time of the year without damaging the plant. The best time however is soon after they finished flowering, generally March to April time.
Your shrub should recover.
https://www.gardeningknowhow.com/ornamental/shrubs/mahonia/grow