Leonard Messel Magnolia Near Black Walnut: Safe If Outside Drip Line

Shade: Walnut canopy shades magnolia.
Juglone: Walnut root toxin affects sensitive plants within root zone.

Magnolia and Black Walnut: Juglone Tolerance

Leonard Messel magnolia is safe near black walnuts IF planted outside the walnut's drip line.

Plant magnolia well away from walnut dripline. No juglone issue. Magnolia will thrive.

Trees: Magnolia Tree Yellowing After Yard Renovation: Root Damage Suspected; Magnolia Species Native to Southeast Kansas; Magnolia Bark Splits: Normal Sloughing, No Treatment; Black Rot on Grapes/Apples: No Threat to Walnut Trees; Magnolia Scale on Historic Tree: Systemic Treatment; Cottony Scale on Magnolia: Not Fungus, But Insect Infestation; Saucer Magnolia and Black Walnut Toxicity: Can They Coexist?; Identifying a Non-Blooming Magnolia as Possibly Fraser Magnolia; Leonard Messel Loebner Magnolia: Two-Tone Pink and White Stars; Magnolia 'Leonard Messel': Two-Toned Strap-Like Flowers at an Early Age

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