Butternut

Butternut produces juglone which inhibits sunflower growth and germination

Juglone from butternut severely affects Jerusalem artichoke tuber development

Juglone toxicity affects Maximilian sunflower growth and flowering

Butternut, like other walnuts, produces juglone which is toxic to many plants including peppers.

Juglone from butternut trees inhibits growth of lettuce and can cause yellowing and stunting.

Common beans are highly sensitive to juglone produced by butternut trees.

Western sunflower is sensitive to juglone compounds from butternut

Butternut produces allelopathic compounds that inhibit grass establishment, particularly problematic in cold climates