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Anna, Biologist, Gardening Expert
Category: Landscaping
Satisfied Customers: 11541
Experience:  I am a biologist with experience in water gardening, and growing trees, ornamental plants, and vegetables.
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How often should a healthy 30 year old Oak Tree be trimmed

Customer Question

How often should a healthy 30 year old Oak Tree be trimmed??
Submitted: 2 years ago.
Category: Landscaping
Expert:  Anna replied 2 years ago.
Hello and welcome. I apologize for the delay. Different experts come online at different times. I just logged on and saw your question. My name is ***** ***** I'm a biologist with a special interest in trees.
There is no set schedule for pruning an oak tree. The less it is trimmed the better. Oaks all over the country are prone to something we call oak decline. It isn't really one condition, but a combination of factors that together cause a healthy tree to decline and die. Fungus entering pruning cuts is often the first step. Because of that we never trim an oak during the growing season. That's when fungi are most active and also when harmful insects are likely to enter the wound. Pruning is done while the tree is dormant. Dead branches, however, can be removed at any time, since there is no circulation in them. Otherwise, during the dormant season, you can remove low hanging branches, those that might pose a threat if they fall, and crossing branches that rub on each other. If your oak has none of these problems, it's best not to trim it all. When you do prune, your cutting tool should be sterilized by dipping in rubbing alcohol between each cut.
If you have more questions, let me know in a REPLY. I hope your oak will thrive.