Growing Substrates

Displaying 1 to 5 (of 9 products)

Product Image	Item Name-	Price
	Crushed Oyster Shell Flour, 3lbs Crushed Oyster Shell Flour. A natural source of calcium carbonate. Used to raise the pH from acidic to base. Primarily used in casings to help...	$3.95 ... more info
	Diatomaceous Earth - Horticultural Grade - 1lb Diatomaceous Earth - Horticultural Grade - 1lb Used as a non-toxic insecticide, due to its physico-sorptive properties. The fine powder absorbs...	$1.99 $1.79 Save: 10% off ... more info
	Gypsum - Calcium Sulfate Pharmaceutical Grade 1 lb of Gypsum (Calcium Sulfate)CaSO4 pharmaceutical/food grade powder . Highly used in the mushroom industry. Used in spawn production, and...	$1.75 $0.95 Save: 46% off ... more info
	Hardwood Dowels 5/16 x 1 inch, Spiral Groove, for Plug Spawn Hardwood dowels 5/16 x 1 inch, spiral groove, for plug spawn. Fresh and ready to sterilize and inoculate with your culture for your plug spawn garden...	$0.02 ... more info
	Horticultural Perlite - 8 Dry Quarts White perlite granules are the result of the expansion of combined water vaporizing in the crude mineral and forming enclosed air pockets. Because of...	$7.95 $5.95 Save: 25% off ... more info