Chris Kott wrote:Deborah,
Paint is poison, you're absolutely right. I'm still looking for places you can just buy mushroom spore or culture like you can seed, so if anyone can help us out here, I'm sure I'm not the only one. I am wondering if there are any pre-paint wood treatments that would save the outer structure of a wood-based raised bed without contamination. The only thing I can think of besides the beeswax mentioned above is probably linseed oil, but one without polishing additives. I wonder if food-grade flax oil (the same thing but cleaner) would work?
Deborah Harr wrote:Want red/pink? Boil up some beets. Want green---boil up the kale.
However, if you like purple and blue, you will have to let me know what you come up with.
Jason Paltrue wrote:I would preserve the wood using linseed oil. Not only does it have good preservative and waterproofing qualities when applied to wood, it is completely non-toxic, so even if you get some run-off, you can be confident it will not harm your plants or your health. If you are committed to true organic practices, make sure you source your oil from an organic supplier.