I've read that some books suggest using reclaimed wood or pallets for garden beds, but I'm a bit concerned about their safety. Specifically, I don't care much about how long they last, but I'm really worried about dangerous chemicals leaching into my food. I have some leftover plywood from a project lying around; is it safe to use that for growing food?
5 Answers
Plywood itself is technically safe, but it tends to rot after a few years, so it’s not a long-term solution. If you do go that route, just keep that in mind!
I wouldn't recommend using plywood for your garden beds. It really doesn't hold up well in moisture and there are concerns about the glues used in plywood possibly leaching into the soil. Just something to think about!
Sigh ok ty
The book does mention using plywood for the bottoms of planters, but I’d lean towards other materials too.
Plywood can also warp unless you significantly reinforce it. Making it really strong with supports might help, but it's additional work!
3x3x.5 with 1 inch wood and support in the middle might be a good idea.
The book warns against using pre-treated wood to avoid chemical leaching into the soil. I once used redwood; it was good for about 10 years, but now the termites and weather have really damaged it. Honestly, if I could do it over, I’d go with concrete bricks instead.
Thank you!
Honestly, I trust wooden pallets way more than plywood. They seem to be more reliable for garden use.
Why’s that?
Thank you, I’ll plan for that.