Q.I Have A 20ft Rowan. There Is A “wound” On The East Side Of The Tree-think It Is Due To Winter Thaw And Freeze. Should I Cover
for the winter months. I am in northeaster ontario. for the winter months. I am in northeaster ontario.
Certified GKH Gardening Expert
No. It will be best to leave it exposed. Covering may lead to infection, where as letting it be exposed to the air will help it heal as it would in nature.
Here is an article that will help: