Used tires in gardening?

Used tires in gardening?

Years ago, someone dumped a truckload of used tires on our land. (Rednecks are awesome!) I have an idea of using those tires as a border for a small raised garden in a corner of my yard. I plan to stack them two high, and make the tires themselves a sort of planter for tomatoes, rosemary, etc.

My question is: Is this insane? Am I setting myself up for leaching chemical problems?

Thanks for your input!

Plant ID

Plant ID

I’m new to the community

I’m new to the community

bedspread

bedspread

Bamboo

Bamboo

Curious

Curious

Photos of my garden. What to plant next?

Photos of my garden. What to plant next?