posted 12 years ago
Hey Ariel, I had gone to a permaculture meetup in NO and seen first hand all the glass and derbis in the soil. The site was a gorilla garden that was being sold to a neighbor for a parking lot. The debris did not appear to affect plant growth at that site, it was a beautiful garden. While glass offers no benefits to the plants or the soil life, I don't think it would harm them. The roots should just grow around it like they would a rock.