Yellow spots and prematurely falling Japanese red Maple leaves

Asked May 19, 2020, 9:18 AM EDT

Yellow spots and prematurely falling Japanese red Maple leaves. I’ve noted over the past two weeks several yellowing leaves on my Japanese red Maple tree. It was planted five years ago and has never had issues. Appreciate your help with a diagnosis and treatment. Please see the photo attached.

Baltimore County Maryland

3 Responses

This looks like symptoms of cold damage and we are receiving photos of Japanese maples like this from all over the state. Many plants were lured out of dormancy and then were hit with frosts and cold temperatures recently. On some trees we are also noticing damage on the top growth versus the bottom growth. This may be due to warmth from the ground area and bottom growth was not affected.
These damaged portions will eventually drop out. If the tree is otherwise healthy, it will push out new growth this spring/summer. No treatment is necessary.

Keep your tree well watered during dry periods and make sure mulch is no thicker than several inches and away from the trunk. You can send us more photos this season, if you notice additional symptoms.


Thank you so much! As you said, the top of the tree has been affected much more (as seen in the photo). Thanks again!