Windmill Palms
Q.

Are Palm Trees Tolerant to Juglone?

Zone 7a | palm13 added on August 13, 2012 | Answered

I have a black walnut and have recently planted some palm trees near it. Specifically, a Windmill palm. I cannot seem to find out if palms are tolerant to the chemical (Juglone), which black walnuts secrete.

A.
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Nikki
Certified GKH Gardening Expert
Answered on August 14, 2012

Unfortunately, I am unable to find any surefire proof that these trees can withstand the toxicity of black walnuts. Therefore, I would not recommend planting it anywhere within close proximity of the tree. You can, however, grow the palm in a container or locate it at least 50 feet or more away from the black walnut. This article will help with tolerant plants: https://www.gardeningknowhow.com/edible/nut-trees/black-walnut/black-walnut-compatible-plants.htm

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