Can I Grow Plants In Aluminum Boxes?
Q: I have come into possession of several used aluminum truck tool boxes. I am contemplating making them into raised planters for vegetables and herbs. Can I grow plants in aluminum? Would it get too hot for the plants?
A: I foresee no problems. The aluminum sheet from which the toolboxes are made has a naturally deposited oxidized coating. This oxidation layer will prevent aluminum from leaching into the soil. You can paint the boxes a light color to prevent overheating.
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