We planted a maple tree approximately 6 years ago that n our yard. My husband accidentally hit and injured the trunk tearing apart part of it. The tree has continued to grow normally with the exception of the trunk. It has the large gash growing as well which has developed a cavern. What should I do to ensure the tree will grow to be healthy. I was told by a friend to let nature heal it and it’ll be fine. Please advise on your thoughts. Thank you very much.
The bark may regrow but, if the “cavern” is the inside of the tree rotting away then that is the larger issue. It will likely never recover and it will become a hazard to anything nearby since it will be structurally unsound and a strong wind will bring it down. You should consult with a licensed arborist to see what your options are.