So I've been searching for some information related to using
wood chips in/around/under/on top of my
garden beds. I've ended up here : ) . Lots of good information. I've read in another post that black walnut is toxic to most plants... which is pretty devastating news to me sense i have close to 10 cubic yards of chipped wood coming from various species
native to Southern Kentucky. I know that Black Walnut and Red Cedar have been chipped in this mixture for sure. As far as the rest i do not know. i obtained the chippings from the utility company as they trimmed up the utility easement on the back end of my property. The pile has been sitting for 1.5 years. About 5 months after they dumped the chips i spread out about a 5" layer on my soon to be
greenhouse floor (which at the moment was thick green grass). So about 1 year later the 16'x30'
greenhouse is built (nothing growing yet) and a good amount of grass/random veg has growing through the chips. So I put down another 5" layer down. I intended on building some raised beds on the
greenhouse floor (on top of the chips). Sense these chips contain Black walnut i'm kinda stuck wondering if I
should rake out all the chips or just go ahead and built over top of the chips. Any advice related to what I have going on here would be greatly appreciated.