Vermiculite, an ingredient in most commercial potting soils, has been found to contain small amounts of asbestos and has even been linked to asbestos-related illnesses. Make your own vermiculite-free potting soil this season.
What you’ll need:
· 3½ gallons peat moss
· ¾ cup limestone
· 1½ gallons screened compost, aged for at least 8 months
· One 5-gallon or bigger bucket or tub to mix it all together in.
