Black Locust wood chips

Asked October 28, 2019, 5:26 PM EDT

Hi OSU Extension, I have several cord of Black Locust firewood I am cutting. It is salvage from the fire that went through the farm land east of The Dalles last year. Some of the outside of the logs are completely charred. I am making a large pile of wood chips, sawdust and bark from these trees. Is it safe to put into my garden beds, or will the allleopathic compounds harm other plants? Thanks!!!!

Wasco County Oregon

1 Response

Thank you for your question. I know it would be helpful to you to have a ‘yes’ or ‘no’ answer regarding the chemicals in the plant are harmful (or helpful) to surrounding plants. But, unlike walnuts (Juglans), little research has been done (and published) on the topic. Here is the only tangentially related article I could find: https://digitalcommons.mtu.edu/cgi/viewcontent.cgi?article=1612&context=etds Perhaps you can experiment in your garden and supply information for further research. Thanks!