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Walnut Trees

Q.Walnut Tree And Fertilizing In The Spring.

Zone 80504 | Anonymous added on July 22, 2022 | Answered

Thank you for letting us know that the Walnut trees should be fertilized in the spring, not during the summer. One of the trees is planted in the lawn. When should the fertilizer for the tree be applied; before or after Weed and Feed for the lawn is applied?

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Certified GKH Gardening Expert
Answered on August 1, 2022

You need a grass-free area around your tree that extends to the canopy. Cover it with a couple inches of mulch. Your tree should not be getting your lawn fertilizers and weed killers. Especially avoid getting weed and feed on it. It has weed killers that could harm the tree.

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