split trunk bark on autumn blaze maple

Asked August 21, 2017, 5:35 PM EDT

vertical split bark on a autumn blaze maple. 3 splits about 4 inches long about 3 feet from ground. tree is 3 years old. the tree looks healthy. any care suggestion ? thank you.

Stearns County Minnesota

1 Response

Splits on maples trees are common due to their thin bark. Causes are usually a combination of frost, sunscald or mechanical injury. In most cases, small cracks and splits are usually not a significant threat to the tree. Typically there's not much you can do about them once they occur. Trees have ways of compartmentalizing this kind of damage and healing. Here is additional information: http://plantclinic.cornell.edu/factsheets/barksplitting.pdf They have an additional suggestion to trim the split.