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Fertilizing a Large Black Walnut Tree for Better Nuts

Black walnuts are messy but fun. Fertilize like a pecan: measure trunk diameter at breast height. Apply 4 lbs of 10-10-10 per inch of diameter, up to 25 lbs max, spread under the canopy in late March before leaf-out. If you discover an easy way to extract nutmeats without smashed fingers, please share!

About Gardening: Black Walnut Root Damage from Excavation: High Mortality and Fall Risk; Black Walnut Stump Grinding Stains Concrete Driveway; Leaf Galls on Black Walnut: Harmless Wasp-Caused Growths; Cut Black Walnut Root Dripping Water: Leave It Alone; Should You Fill a Cavity in a Black Walnut Tree?; Black Walnut Twig Girdler: Large Branch Drop Explained; Black Walnut Sap on Treated Wood Arbor: No Damage; Walnut Aphid Honeydew: Sooty Mold on Leaves; Plants That Tolerate Black Walnut Juglone Toxicity; Black Walnut Tree Diseases: Recognition and Management

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