Can You Compost Walnuts?

Most nuts, like pistachios and chestnuts, can be used as a compost material. Walnuts are unfortunately an exception and should not be used.

Juglone is the reason why walnuts should not be used as a compost material. Juglone is a chemical found in walnut trees. It can be toxic to a large variety of fruits and vegetables. Tomatoes, in particular, are known to be highly sensitive to the chemical.


So what can you be used as compost? Check out our what to compost database to find out more.

Walnuts Compost