Rather than continueing the hyjacking Treegal classes thread. I want to start another thread to discuss using automoblie tires for raised planting beds. It has been suggested that old tires can leach harmful elements into the soil resulting in non healthy food crops. I havent seen any scientific studies relating to this topic, but I have seen tires used in this manner every since I was a kid. My grandparents used tires for raised beds, my parents, myself, and lots of other people that I know personaly. I know this doesnt mean its a healthy way of doing things, but until somebody can show a real reason, based on science and not personal preferences or opinion, I plan on continueing to use old car, truck, tractor tires for makeing raised plant beds. If anybody has any info concerning this topic, I would appreciate they post that information here. If you are one of the many peope that do use tires for all or even part of your raised beeding, post a few pics. I dont have any pics to post myself, have to wait until next year before I can take a few.