Free Shipping on all orders over $99
Chat With a Growing Expert Live (M-F 9am to 1pm CST)
Customer Support (M-F 11am to 5pm CST) 1.800.921.4717

Midwest's Select Bulk Substrate Casing Mix - 5 pounds

review-star review-star review-star review-star review-star
(205 Reviews)
Add to Compare
Item #: SBC5 -
Availability: In Stock
Price: $18.00
Retail: $20.00
Quantity:  

Our top selling product every month! Midwest's Premium Select Bulk Substrate is the perfect combination of Coco Coir, Vermiculite, Hydrated Lime, Gypsum, ph buffers, ph stabilizers, mineral water...

Our top selling product every month! Midwest's Premium Select Bulk Substrate is the perfect combination of Coco Coir, Vermiculite, Hydrated Lime, Gypsum, ph buffers, ph stabilizers, mineral water and a few other choice ingredients. Our select casing comes fully hydrated and pasteurized and is ready to use right out of the bag! Use this along with a fully colonized spawn bag to start your bulk growing experience! Each 5 pound bag comes fully sealed and can be used right away or stored in the...

Bulk Spawn Growing & Casing Kit: Dome Edition

review-star review-star review-star review-star review-star
(7 Reviews)
Add to Compare
Item #: BLKD -
Availability: In Stock
Price: $59.99
Retail: $69.99
Quantity:  

(ON SALE!) Our Bulk Monotub Dome Kit is back with new triple vent acrylic dome and 4X thicker heavy duty tray! Turn your fully colonized spawn bags or Grain Jars (sold separately) into a Bulk...

(ON SALE!) Our Bulk Monotub Dome Kit is back with new triple vent acrylic dome and 4X thicker heavy duty tray! Turn your fully colonized spawn bags or Grain Jars (sold separately) into a Bulk harvest fast and easy using this kit. Growing mushrooms in bulk has never been easier! Once you have mastered growing in jars, this is the next step in growing! Simply break them up and mix with our perfected Select Bulk casing mix in the heavy duty tray provided. Typically this is an advanced growing...

Classic Bulk Spawn Growing & Casing Kit

review-star review-star review-star review-star review-star
(49 Reviews)
Add to Compare
Item #: BLK2 -
Availability: In Stock
Price: $64.99
Quantity:  

Turn your fully colonized spawn bags (sold separately) into a Bulk harvest fast and easy using our Premium Bulk casing kit. Growing mushrooms in bulk has never been easier! Once you have mastered...

Turn your fully colonized spawn bags (sold separately) into a Bulk harvest fast and easy using our Premium Bulk casing kit. Growing mushrooms in bulk has never been easier! Once you have mastered growing in jars, this is the next step in growing! Simply break them up and mix with our perfected Select Bulk casing mix in the grow chamber provided. Typically this is an advanced growing method, but we have made growing easy by providing you with step by step instructions & everything you need to...

Midwest's Select Bulk Substrate Casing Mix - 30 Pounds (BULK 6-PACK)

review-star review-star review-star review-star review-star
(4 Reviews)
Add to Compare
Item #: SBC6 -
Availability: In Stock
Price: $89.00
Retail: $120.00
Quantity:  

(Can not be discounted further) Buy in Bulk and save 25% on 30 pounds of our our top selling product every month!  Midwest's Premium Select Bulk Substrate is the perfect combination of Coco...

(Can not be discounted further) Buy in Bulk and save 25% on 30 pounds of our our top selling product every month!  Midwest's Premium Select Bulk Substrate is the perfect combination of Coco Coir, Vermiculite, Hydrated Lime, Gypsum, ph buffers, ph stabilizers, mineral water and a few other choice ingredients. Our select casing comes fully hydrated and pasteurized and is ready to use right out of the bag! Use this along with a fully colonized spawn bag to start your bulk growing experience!...

Midwest's Wild Horse Bulk Substrate Manure Booster

review-star review-star review-star review-star review-star
(28 Reviews)
Add to Compare
Item #: HRS1 -
Availability: In Stock
Price: $5.99
Quantity:  

Midwest's Wild Horse Bulk Substrate Booster is the easiest way to supercharge your bulk grow and minimize the risk of contamination! We've used manure for years but nothing comes close to the...

Midwest's Wild Horse Bulk Substrate Booster is the easiest way to supercharge your bulk grow and minimize the risk of contamination! We've used manure for years but nothing comes close to the performance of this kind. In fact, its so potent you only need to add 1 pound for every 10 pounds of our select casing mix to see results! Increases Mushroom size, increases potency & flavor! This product is used by commercial growers and While the manure may be the star of the show, we have carefully...

24 oz Premium Super Quick-Colonizing 5-grain Jar

review-star review-star review-star review-star review-star
(19 Reviews)
Add to Compare
Item #: PQC7 -
Availability: In Stock
Price: $7.99
Quantity:  

(Back in Stock!)  Midwest Grow Kits is excited to have our 24oz Super-Quick-colonizing 5-grain jars back in stock! This combination is prepared in a new type of glass jar now available in a...

(Back in Stock!)  Midwest Grow Kits is excited to have our 24oz Super-Quick-colonizing 5-grain jars back in stock! This combination is prepared in a new type of glass jar now available in a tapered 24oz size. This new design allows the cake to simply slide out when finished. These jars have been known to colonize in as quickly as 16-21 days! For bulk casing grows use 2 or 3 jars per 5 lbs of casing mix. Each Jar requires 3-4 cc's of spores ...

All-in-One Bulk Monobag Kit

review-star review-star review-star review-star review-star
(33 Reviews)
Add to Compare
Item #: BLK5 -
Availability: In Stock
Price: $30.00
Retail: $34.99
Quantity:  

(On Sale!)  Growing in Bulk has never been easier! This simple setup will teach you the basics of growing from grain spawn to a bulk substrate all in two easy steps! Simply inject your favorite...

(On Sale!)  Growing in Bulk has never been easier! This simple setup will teach you the basics of growing from grain spawn to a bulk substrate all in two easy steps! Simply inject your favorite spores in the 30oz 5-Grain Jar, let it fully colonize (turn white). The next step is to break up the grain and mix it with the bulk substrate (Select Casing Mix) in the bag. The 8mm heavy duty gusseted polybag provides the perfect environment to grow. Once you mix them together, let it sit for...

Midwest's Black Cow Manure Casing Mix - 5 lbs

review-star review-star review-star review-star review-star
(47 Reviews)
Add to Compare
Item #: BC1 -
Availability: In Stock
Price: $20.00
Retail: $25.00
Quantity:  

**NEW** Our new Black Cow Manure based casing Substrate may just be our best creation yet! The manure used in this casing mix is from organic grain fed dairy cows. The composting process from this...

**NEW** Our new Black Cow Manure based casing Substrate may just be our best creation yet! The manure used in this casing mix is from organic grain fed dairy cows. The composting process from this manure is carefully monitored by high tech equipment. The manure is turned into specific size rows and water is added weekly to create the perfect environment. Beneficial microbes break down the manure reaching temperatures of 155 degrees. The manure compost is carefully mixed with Coir, vermiculite,...

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

review-star review-star review-star review-star review-star
(130 Reviews)
Add to Compare
Item #: PQC3 -
Availability: In Stock
Price: $19.99
Retail: $22.99
Quantity:  

(ON SALE!)  This combination of 5 different grains is prepared in a tapered 24oz size. This design allows the cake to simply slide out when finished. These jars have been known to colonize in...

(ON SALE!)  This combination of 5 different grains is prepared in a tapered 24oz size. This design allows the cake to simply slide out when finished. These jars have been known to colonize in as quickly as 16-21 days! For bulk casing grows use 2 or 3 jars per 5 lbs of casing mix. Each Jar requires 3-4 cc's of spores

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

review-star review-star review-star review-star review-star
(57 Reviews)
Add to Compare
Item #: PQC2 -
Availability: In Stock
Price: $8.99
Retail: $10.00
Quantity:  

(On Sale through 7/31/22) Midwest Grow Kits is excited to release our new formula of our quick-colonizing 5-grain blend featuring organic food grade grains! With a germination rate of over 97% in...

(On Sale through 7/31/22) Midwest Grow Kits is excited to release our new formula of our quick-colonizing 5-grain blend featuring organic food grade grains! With a germination rate of over 97% in recent tests, these jars have been known to colonize in as quickly as 18-23 days from spores and 10-14 days from liquid culture! Each jar contains 32 ounces of nutrient-enriched organic rye berries and a mixture of Organic White and Red Milo, Organic White and Red Millet and mineral water fortified...

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

review-star review-star review-star review-star review-star
(74 Reviews)
Add to Compare
Item #: PQC9 -
Availability: In Stock
Price: $24.99
Retail: $28.99
Quantity:  

(Summer Sale! Ends 7/31/22)  Midwest Grow Kits is excited to release our new formula of our quick-colonizing 5-grain blend featuring organic food grade grains! This new combination is available...

(Summer Sale! Ends 7/31/22)  Midwest Grow Kits is excited to release our new formula of our quick-colonizing 5-grain blend featuring organic food grade grains! This new combination is available in a new 32oz wide mouth jar. With a germination rate of over 97% in recent tests, these jars have been known to colonize in as quickly as 18-23 days from spores and 10-14 days from liquid culture! 3 Jars which each contain 32 ounces of nutrient-enriched organic rye berries and a mixture of Organic...

Manure/Grass Lover's Bulk Spawn Growing & Casing Kit

review-star review-star review-star review-star review-star
(4 Reviews)
Add to Compare
Item #: GLK1 -
Availability: In Stock
Price: $34.99
Quantity:  

Our Manure/Grass Loving Mushroom Kit has all the essentials for growing specific varieties that require a specialized substrate and casing. This kit is for mushrooms that require aged horse manure...

Our Manure/Grass Loving Mushroom Kit has all the essentials for growing specific varieties that require a specialized substrate and casing. This kit is for mushrooms that require aged horse manure and a high PH casing which includes peat moss. Our substrate is made with premium sun-aged horse manure, extra chopped straw, coir/vermiculite and ph buffers. Each vacuum sealed 3lb bag is pasteurized for 3 hours in our hot water immersion bath. This kills the bad bacteria but leaves the good. ...

3-Pack Organic Rye Grain Jars (32oz)

review-star review-star review-star review-star review-star
(3 Reviews)
Add to Compare
Item #: RG32 -
Availability: In Stock
Price: $21.99
Retail: $24.99
Quantity:  

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...

Premium Coir Brick (650g)

review-star review-star review-star review-star review-star
(27 Reviews)
Add to Compare
Item #: Cr1 -
Availability: In Stock
Price: $3.75
Retail: $7.50
Quantity:  

(HOLIDAY SALE!) Coir is one of the best bulk mediums to grow mushrooms in. It's naturally resistant to mold and bacteria and mushrooms absolutely love it. When wet it expands to over 2.5 cubic feet....

(HOLIDAY SALE!) Coir is one of the best bulk mediums to grow mushrooms in. It's naturally resistant to mold and bacteria and mushrooms absolutely love it. When wet it expands to over 2.5 cubic feet. There are many different brands, styles and textures of coir sold for many different uses. We have hand selected Coco Coir, the best producing variety and brand available for growing mushrooms.

Assorted Mushroom Sticker Pack

review-star review-star review-star review-star review-star
(3 Reviews)
Add to Compare
Item #: STK1 -
Availability: In Stock
Price: $1.00
Quantity:  

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)

Add to Compare
Item #: MTT1 -
Availability: In Stock
Price: $1.00
Quantity:  

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 FREE when you use the promo code below! Coupon code: STICKERS

Vintage Mushroom T-Shirt

review-star review-star review-star review-star review-star
(2 Reviews)
Add to Compare
Item #: TSH1 -
Availability: In Stock
Price: $19.99
Retail: $24.99
Quantity:  

This retro mushroom t-shirt is a favorite around here. This shirt is made by Next Level Apparel and is extremely soft and comes pre-shrunk. Features Available in S,(Medium Out of stock),L,XL(out of...

This retro mushroom t-shirt is a favorite around here. This shirt is made by Next Level Apparel and is extremely soft and comes pre-shrunk. Features Available in S,(Medium Out of stock),L,XL(out of stock) Super-Soft tri-blend UnisexPre-ShrunkManufactured by Next Level Apparel Fits true to size More inventory arriving 11/28/22 ...

Mushroom Bulk Casing & Bulk Substrate

When you are ready to start growing in bulk, our mushroom bulk casing bags and kits are the perfect solution. Our bags of casing mix for mushrooms make growing in bulk easier than ever!

Our select mushroom casing comes fully hydrated and pasteurized, so they are ready to use right out of the bag. The mushroom bulk substrate is the next step to take after you’ve mastered growing in jars. If you grab one of our bulk substrate kits, you’ll have everything you need to create a mushroom harvest paradise.

Here you’ll also find our manure bag mixes, our most effective creation to date. Our mushroom cultivation supplies increase mushroom size, potency, and flavor. If you want to get the most out of your growing, you’ll need the best products and equipment. Midwest Grow Kits has you covered!