Walnut Tree And Fertilizing In The Spring.

Question

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?

Answer 1

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.