Asked August 30, 2019, 11:06 AM EDT

We have a maple that is dying, likely due to root damage by a landscape company (scraped away the soil underneath the tree to "improve" the parking for their truck). Another company - that we encountered accidentally at a meeting we attended - has suggested that we try biochar around the roots. Supposedly it may help heal damage, although that is not its primary marketing agenda. Is there any evidence that biochar would help a damaged tree?

Kentucky maple trees biochar kentucky cooperative extension

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