Raw Materials



1 Cubic Foot of 100% Natural Wheat Straw

1 Cubic Foot of 100% Natural Wheat Straw

This sale is for 1 cubic foot of 100% natural wheat straw. Our straw is harvested locally in the Midwest from beautiful flowing fields. This straw is...

$15.00



25 Pound Bag of all Natural Rye Berries

25 Pound Bag of all Natural Rye Berries

This sale is for a 25 pound bag of 100% all natural rye berries. This is an excellent grain for mushroom cultivation. Save money by sterilizing your...

$32.00



Agricultural Grade Gypsum

Agricultural Grade Gypsum

Agricultural grade gypsum can be used in many mushroom substrate recipes and as a soil amendment. Not all kinds of gypsum are the same. Certain kinds...

$3.75



Bee Pollen Granules

Bee Pollen Granules

Bee pollen granules have many uses from a super food having more protein per ounce than any other natural food to an additive in mushroom substrates....

$7.50



Birch Wood Dowels Spiral Cut 5/16" X 1" (sold per 1000)

Birch Wood Dowels Spiral Cut 5/16" X 1" (sold per 1000)

These wood dowel pins measure 5/16" X 1" and are spiral cut. Made of 100% birch, these wood dowel pins are perfect for making plug spawn....

$20.00



Coarse Vermiculite - Large Bag

Coarse Vermiculite - Large Bag

4 Cubic Foot Bag of Horticultural Grade Coarse Vermiculite This sale is for a 4 cubic foot bag of coarse vermiculite. This is a much higher quality...

$44.00



Coconut Coir (Loose, 8 quarts)

Coconut Coir (Loose, 8 quarts)

This sale is for 8 quarts of loose coconut coir. Free of any additives and 100% natural, this makes an excellent mushroom substrate or soil additive.

$8.75



Compressed Coconut Coir Brick

Compressed Coconut Coir Brick

650 gram compressed coconut coir brick. Perfect for mushroom cultivation and as a hydroponic grow medium. Coconut coir can also be added to soil as...

$6.25



Cracked Corn 5 Pound Bag

Cracked Corn 5 Pound Bag

5 pound bag of cracked corn for mushroom cultivation. Once properly hydrated and sterilized cracked corn can make an excellent mushroom spawn...

$4.50



Cut Wheat Straw (8 quarts)

Cut Wheat Straw (8 quarts)

Here we have fresh cut wheat straw. This straw has many uses. If you pasteurize the straw it can be used as an excellent mushroom substrate, Or you...

$5.75



Earth Worm Castings

Earth Worm Castings

100% pure earth worm castings. Works great as a soil or substrate amendment, as it is high in nitrogen. By adding nitrogen and texture to the soil...

$16.00



Expanded Clay Pebbles (Hydroton) 8 Quart Bag

Expanded Clay Pebbles (Hydroton) 8 Quart Bag

This sale is for an 8 quart bag of expanded clay pebbles also know as Hydroton. Expanded clay pebbles are used for retaining and distributing...

$10.00



Fine Ground Oyster Shells

Fine Ground Oyster Shells

Fine ground oyster shells add much needed calcium to mushroom substrates and is also used in mushroom substrate casing. Sold per pound.

$4.75



Hard Wood Pellets (8 quarts)

Hard Wood Pellets (8 quarts)

Hard wood pellets for mushroom cultivation. Made of pure Oak. Simply hydrate by adding water. These pellets will quickly expand into sawdust. Drain...

$8.75



Horticultural Grade Coarse Vermiculite (8 quart bag)

Horticultural Grade Coarse Vermiculite (8 quart bag)

8 Quart Bag of Coarse Vermiculite This sale is for an 8 quart bag of coarse vermiculite. This is a much higher quality and size of vermiculite then...

$8.75



Large Horticultural Perlite (8 quarts)

Large Horticultural Perlite (8 quarts)

Out-Grow's perlite is medium to large sized and free of any fertilizers or additives. Perfect for keeping mushroom fruiting chambers hydrated or as a...

$8.75



Loose Coconut Coir (1.5 cubic feet)

Loose Coconut Coir (1.5 cubic feet)

1.5 Cubic Feet of Loose Coconut Coir This sale is for a 1.5 cubic foot bag of loose coconut coir by Botanicare. This is a perfect substrate for many...

$34.00



Peat Moss (8 quarts)

Peat Moss (8 quarts)

Organic peat moss. Frequently used in making mushroom substrate casing material or as a soil additive. Bagged in 8 quart bags, this is a great value...

$8.75



Rice Seed Hulls

Rice Seed Hulls

Rice seed hulls have many applications from mushroom cultivation to gardening. This sale is for a eight quart bag of rice seed hulls.

$6.50



Rye Berries (10 pounds)

Rye Berries (10 pounds)

These are 100% natural rye berries free of any fungicides or pesticides. Rye berries are perfect for making mushroom spawn.

$20.00



Rye Grass Seed

Rye Grass Seed

5 pounds of rye grass seed (8 quarts). Often used in mushroom cultivation our rye grass seed is 100% natural and not treated with any fungicide.

$15.00



Wheat Bran

Wheat Bran

Wheat bran is commonly used in many different mushroom substrate recipes. It is extremely beneficial for wood loving mushroom species but will...

$4.00



Wheat Straw Bale

Wheat Straw Bale

100% all natural wheat straw bale. Wheat straw has many uses from mushroom cultivation to landscaping to animal bedding and much more. You will...

$35.00



White Millet

White Millet

Five pounds of premium white millet. A common ingredient found in wild bird seed and is sometimes used in mushroom cultivation.

$9.00



Yellow Popcorn 10 lbs

Yellow Popcorn 10 lbs

Once properly hydrated and sterilized this popcorn makes a very good mushroom substrate and is an alternative to rye or other grains. This sale is...

$16.00