Soil Amendments
Q.

can English walnut, pecan, & almond hulls be used in potted plants

Zone Redondo Beach, CA | Reggie Cooke added on February 20, 2018 | Answered

Can English walnurs, pecans, & almond hulls be used in potted plants? Thanks

A.
A.Answers to this queston: Add Answer
BushDoctor
Certified GKH Gardening Expert
Answered on February 20, 2018

I would not, as the trees contain juglone, which is toxic to most plants. I have had just a few make it into my pots, and within a week I was noticing bad issues until they were all removed from the soil.

Now, with proper composting this will not be a problem. But by then the hulls should not be recognizable.

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