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Old February 9, 2017   #1
4season
Tomatovillian™
 
Join Date: Aug 2014
Location: albuquerque
Posts: 308
Default Allelopathy quiestion

I know walnut leaves are bad and can cause problems for a long time. I read somewhere coffee chaff is allelopathic but I can't find how long it might last. does anyone want to guess ? Or have a reference ?
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