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Autumn Blaze Maple #941857
Asked August 08, 2026, 9:24 AM EDT
Boulder County Colorado
Expert Response
Thank you for your question. Shade trees generally do not need and additional fertilizer unless they are showing signs of nutrient deficiency. This page has some great information:
https://extension.colostate.edu/resource/fertilizing-shade-trees/
Please let us know if you have any additional question!
Kindly,
Boulder County Master Gardeners