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Out Grow offers the finest mushroom growing substrates available on the internet. We also have a wide variety or gourmet mushroom strains to complement our other products.

New Products For May

Small Mushroom Grow Bags With 0.5 Micron Filter
$0.50

Organic Rye Berries (4 quarts)
$6.50

12cc Luer Lock Syringe With 1 inch Needle
$0.75

4 Quart Jars of Grain Spawn and 4 Pounds of Compost
$32.00

Mono Tub Fill Kit
$39.00

Centrifuge Tubes
$0.60

25 Pounds of Manure Based Mushroom Substrate
$75.00

50 pounds of Manure Based Mushroom Substrate
$135.00

12 Pounds of Sterilized Rye Berries Mushroom Substrate
$40.00