Concerns About Using Recycled Tire Planters

Reader Contribution by Staff

Are old tires safe to use as planters?

Sharon White
Mora, New Mexico

Short-term, yes, tire planters are OK, although the soil in black tire planters will probably get hotter than most plants would prefer. Long-term, no, because the tire rubber will slowly biodegrade and release zinc, carcinogenic PAHs (polycyclic aromatic hydrocarbons) and other toxic compounds into your garden soil.

Toxics from tires are an even greater concern in some recycled products, such as rubber mulch and artificial turf, that are made from shredded or pelletized old tires. Here is an excellent report about the hazards of recycled tires, by Sarah Lane at Progressive Kid.

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