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Ultimate ½ Pint Substrate Jars (6-Pack)

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(221 Reviews)
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Item #: ujar01 -
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Price: $23.99
Retail: $29.99
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Our 8oz Ultimate substrate jars are the quite possibly the best on the net! We have worked for over 15 years looking for perfection! We finally found it! We have combined special organic brown rice...

Our 8oz Ultimate substrate jars are the quite possibly the best on the net! We have worked for over 15 years looking for perfection! We finally found it! We have combined special organic brown rice flour with vermiculite, mineral water, Liquid worm castings and Bee pollen to create the Ultimate mushroom growing jars! Each jar has four pre-drilled holes in the lid and a top dry layer of vermiculite for added protection. We have customers who have been using our jars for over 10 years simply...

Ultimate ½ Pint Substrate Jars (12-Pack)

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(237 Reviews)
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Item #: Ujar02 -
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Price: $37.99
Retail: $44.99
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(WINTER SALE SPECIAL PRICE!)Our 8oz Ultimate substrate jars are the quite possibly the best on the net! We have worked for over 15 years looking for perfection! We finally found it! We have combined...

(WINTER SALE SPECIAL PRICE!)Our 8oz Ultimate substrate jars are the quite possibly the best on the net! We have worked for over 15 years looking for perfection! We finally found it! We have combined special organic brown rice flour with vermiculite, mineral water, Liquid worm castings and Bee pollen to create the Ultimate mushroom growing jars! Each jar has four pre-drilled holes in the lid and a top dry layer of vermiculite for added protection. We have customers who have been using our jars...

24 oz Premium Super Quick-Colonizing 5-grain Jar

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(34 Reviews)
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Item #: PQC7 -
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Price: $7.99
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A 24 oz premium super quick 5 grain jar is a specially designed glass jar that contains a mixture of 5 different grains and is used for growing mycelium or mushroom spores. The jar is typically...

A 24 oz premium super quick 5 grain jar is a specially designed glass jar that contains a mixture of 5 different grains and is used for growing mycelium or mushroom spores. The jar is typically filled with nutrient-enriched organic rye berries and a mixture of mineral water fortified with gypsum and diammonium phosphate, which creates optimal growing conditions. The 5 different grains in the jar are typically chosen for their ability to colonize quickly, and the jar is designed to allow for...

3-Pack Premium 24 Oz Super-Quick-Colonizing 5-grain Jar (24oz)

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(195 Reviews)
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Item #: PQC3 -
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Price: $22.99
Retail: $27.99
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A 24 oz premium super quick 5 grain jar is a specially designed glass jar that contains a mixture of 5 different grains and is used for growing mycelium or mushroom spores. The jar is typically...

A 24 oz premium super quick 5 grain jar is a specially designed glass jar that contains a mixture of 5 different grains and is used for growing mycelium or mushroom spores. The jar is typically filled with nutrient-enriched organic rye berries and a mixture of mineral water fortified with gypsum and diammonium phosphate, which creates optimal growing conditions. The 5 different grains in the jar are typically chosen for their ability to colonize quickly, and the jar is designed to allow for...

Premium Quick-Colonizing 5-grain Jar (32oz)

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(70 Reviews)
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Item #: PQC2 -
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Price: $8.99
Retail: $10.00
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A 32 oz premium super quick 5 grain jar is a specially designed glass jar that contains a mixture of 5 different grains and is used for growing mycelium or mushroom spores. The jar is typically...

A 32 oz premium super quick 5 grain jar is a specially designed glass jar that contains a mixture of 5 different grains and is used for growing mycelium or mushroom spores. The jar is typically filled with nutrient-enriched organic rye berries and a mixture of mineral water fortified with gypsum and diammonium phosphate, which creates optimal growing conditions. The 5 different grains in the jar are typically chosen for their ability to colonize quickly, and the jar is designed to allow for...

3-Pack Premium Quick-Colonizing 5-grain Jar (32oz)

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(147 Reviews)
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Item #: PQC9 -
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Price: $23.99
Retail: $28.99
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A 32 oz premium super quick 5 grain jar is a specially designed glass jar that contains a mixture of 5 different grains and is used for growing mycelium or mushroom spores. The jar is typically...

A 32 oz premium super quick 5 grain jar is a specially designed glass jar that contains a mixture of 5 different grains and is used for growing mycelium or mushroom spores. The jar is typically filled with nutrient-enriched organic rye berries and a mixture of mineral water fortified with gypsum and diammonium phosphate, which creates optimal growing conditions. The 5 different grains in the jar are typically chosen for their ability to colonize quickly, and the jar is designed to allow for...

3-Pack Organic Rye Grain Jars (32oz)

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(18 Reviews)
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Item #: RG32 -
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Price: $19.99
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Our 32oz organic rye jars are a quick and easy way to start your next bulk grow. Rye berries are extremely high in nitrogen and release their nutrients slowly. This is why people have been using rye...

Our 32oz organic rye jars are a quick and easy way to start your next bulk grow. Rye berries are extremely high in nitrogen and release their nutrients slowly. This is why people have been using rye for over 50 years to grow mushrooms of all types! Our organic rye is nutrient-enriched with gypsum and other PH adjusters to give you a fast colonizing jar from spores, agar or liquid culture. 3 Jars which each contains 32 ounces of nutrient-enriched organic rye berries and mineral water fortified...

Assorted Mushroom Sticker Pack

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(11 Reviews)
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Item #: STK1 -
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Who doesn't love free stickers? We never know who throws them out or who keeps them so now you can add them to your cart for $1.00 and then use a coupon code to subtract that $1.00 off. We are...

Who doesn't love free stickers? We never know who throws them out or who keeps them so now you can add them to your cart for $1.00 and then use a coupon code to subtract that $1.00 off. We are always adding new stickers every month or two. The picture is an example of what we currently have and may vary. We love funny or cool looking stickers so if you have an idea or illustration that would make a great sticker, please share! - Add this to your cart and receive 3-4 cool mushroom stickers!-...

Mushroom Squeeze Stress Toy (Assorted Colors)

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(3 Reviews)
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Squeeze this cute little mushroom toy and watch the stress melt away! We know growing can stress you out at times, so relax and squeeze your new little friend. Don't stress over the price because...

Squeeze this cute little mushroom toy and watch the stress melt away! We know growing can stress you out at times, so relax and squeeze your new little friend. Don't stress over the price because its ONLY $0.99 when you use the promo code below! Coupon code: STICKERS

Vintage Mushroom T-Shirt

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(8 Reviews)
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Item #: TSH1 -
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Price: $18.00
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The return of our popular retro mushroom T-shirt! A favorite classic around here. This shirt is extremely soft and has a better fit than standard shirts. Features Super-Soft tri-blend...

The return of our popular retro mushroom T-shirt! A favorite classic around here. This shirt is extremely soft and has a better fit than standard shirts. Features Super-Soft tri-blend UnisexPre-ShrunkManufactured by Gilden or Port & COFits true to sizeAvailable in Small, Medium , Large (OUT OF STOCK), XL and XXL Example Fit: 170-185lb Male 5'11 with 34-36 waist. Large fits perfect More arriving soon! ...

Giggle Mushroom T-Shirt

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Price: $18.00
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  We brought back our favorite 2016 shirt for a second term! (Although we have no political affiliation) American really needs a laugh right about now. This shirt is made by Bella+Canvas, a...

  We brought back our favorite 2016 shirt for a second term! (Although we have no political affiliation) American really needs a laugh right about now. This shirt is made by Bella+Canvas, a popular ultra soft blend of 90% cotton 10% polyester. Features Available in Small, Medium Large, XL, XXL and XXXLSuper-Soft Cotton/Poly blendFits true to size Example Fit: 170-175lb Male 5'10 with 34-36 waist. Medium fits athletic (Pictured), Large fits slightly looser. ...

Mushroom Jars & Substrate for Cultivation

Substrate jars are the easiest and quickest way to grow mushrooms, and our mushroom substrate jars are unmatched. We’ve been working for over 15 years to find the perfect mushroom growing substrate formula, and we have finally found it!

At Midwest Grow Kits, we use only quality ingredients and materials on all our mushroom growing products. Our mushroom jars are no exception. The ultimate mushroom substrate jars are made up of organic brown rice flour with vermiculite, mineral water, liquid worm castings, and bee pollen. This blend creates the ideal environment for mushrooms to fruit and bring forth maximum yields.

Shop our mushroom grow jar products today and dive into the magical world of mushroom growing.