Willy's Blend - Willy Myco's Official Premium Imported Manure-Based Substrate - 5 lbs
Willy's Blend - Willy Myco's Official Premium Imported Manure-Based Substrate - 5 lbs is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Willy's Blend - Willy Myco's Official Premium Imported Manu...
Description
Description
Willy’s Blend – Official Manure-Based Substrate
Exclusively from Midwest Grow Kits in Partnership with Willy Myco & Brown Treasure
MARCH MADNESS SALE!
Try Willy’s Blend today and save 20% off with coupon code: WILLY20
Grow with the exact substrate used by legendary YouTube mycologist Willy Myco. After years of demand from growers around the world, Midwest Grow Kits is proud to be the only official producer and vendor of Willy’s Blend in the continental USA—made with ingredients imported directly from Brown Treasure in Puerto Rico, Willy’s trusted partner and the origin of his famous manure mix.
This isn’t just another substrate.
This is the substrate the community knows, respects, and talks about—the same formula that has appeared across Willy’s tutorials, grows, and side-by-side results for years. Time-tested. Grower-approved. Proven in countless successful harvests.
To support Willy’s mission of getting his famous mix into the hands of more growers—without delays or high shipping costs—we formed this exclusive partnership with Willy Myco and his team. Shipping from Puerto Rico can be slow and expensive, so by producing and distributing Willy’s Blend from our centrally located Illinois facility, we’re able to offer faster delivery, lower shipping costs, and a more reliable supply.
With our fast fulfillment team, growers across the continental U.S. can finally experience Willy’s Blend the way it was meant to be: fresh, authentic, and delivered quickly.
Why Willy’s Blend Is Legendary
Hand-crafted, perfected, and refined by Willy Myco over years of personal experimentation, this substrate blend became iconic for one simple reason: it performs.
At the core of Willy’s Blend is a premium mix of aged, exotic manure—naturally leached and dried for a minimum of 2 years. This aging process creates a nutrient-rich foundation packed with the micro and macro nutrients mushroom mycelium thrives on, supporting fast colonization and thick, healthy flushes.
What Makes This Version Special
Because of our exclusive partnership, everything in this blend comes directly from the source:
- Official ingredients imported from Brown Treasure
- Authentic Willy Myco recipe — no substitutions, no knockoffs
- Mixed, prepared, and processed in the USA by Midwest Grow Kits
- The only certified version available outside of Puerto Rico
When you buy from Midwest Grow Kits, you’re getting the real deal—the same mix Willy trusts in his own personal grows.
Key Features
- Official partnership between Midwest Grow Kits, Willy Myco & Brown Treasure
- Made with aged, exotic manure (minimum 2-year natural aging)
- Contains 6 proprietary additives for peak performance
- Loaded with bioavailable nutrients for vigorous mycelial growth
- Promotes strong colonization and premium flushes
- Exclusively sold and produced in the continental USA
- Trusted by growers who want authentic, proven results
Why Growers Love It
Willy’s Blend is known for delivering:
- Faster colonization
- Thick, resilient mycelium
- Excellent water retention without muddy texture
- Robust fruiting and reliable yields
- A forgiving, strong-performing substrate even for beginners
If you’ve watched Willy’s videos and wondered how he gets those results—this is the substrate.
Real Results From Growers
Willy’s Blend has built a loyal following because growers keep seeing the difference for themselves. From stronger colonization to fuller flushes, this is the substrate many growers choose when they want performance they can trust.
Real-world results from growers using the official Willy’s Blend substrate. NOT AI!
Our Growing Experts Recommend
Products our growers commonly use with this item
Let customers speak for us
If contamination is a concern for you, this FFU is definitely worth the investment. With the Bonsai Laser Particulate/Contaminate Meter PM 2.5, I consistently got all 0's up to 5 feet away (only tested up to 5 feet), as long as I stayed within the 23" × 23" area in front of the filter. Outside that zone, particle counts are still very low.
Every thing went well !!! Beautiful mushrooms!!!!
Wet and taking off like a jet 🥷
Thank you MWG 🙌
This kit contains everything you need to start growing your own mushrooms (except the genetics of course).
I inoculated the grain with Gorilla Wizard LC on 3/1 then did a break n’ shake on 3/12.
11 days later on 3/23 I transferred the grain spawn to bulk substrate in the monotub (I added a casing layer on top).
It’s been about a week now and it’s showing nice recolonization :)
I’m very pleased with this kit. The 44q container is fantastic! It has a tall lid so your mushrooms are able to grow and stretch :) I’ve tried other monotubs (like the inflatable one - the concept was great the practicality of it wasn’t quite up to par),
So far everything about this company has been great, I haven’t had any contamination or anything. I will update in a couple weeks the outcome of my Gorilla Wizard grow :)
SIMPLY THE BEST,BETTERMENT THAN ALL THE REST THANK YOU MIDWEST YOU ROCK !!!!!!!!!!😎😎😎😎😎😎😎
I love this company and I’ve had 100% success rate with their products!!!!
These silicone lid covers are a game changer. When I prep grains, water always finds a way under the foil and onto my lids no matter how tight I get the foil. These lids go on quickly and keep my jar lids nice and dry! This is big for anyone using paper filter patches for gas exchange. Thank you Midwest for having exactly what I needed!
I know these are probably designed for all-in-one setups, but recently I've come to find spawning 2 bulk in these types of bags incredibly effective. Instead of mixing a grain bag (2-2.26 lbs) into 5 lbs of substrate in a pan, I like to make two nice big round babies with the same amount. For measure, these bags could easily hold 10 lbs of materials, and the real reason I got them was due to the concern that the tops of the smaller ones would not so easily receive pouring from other large bags. Plus, the sale price and potential for extra filtered air flow sold me solid. That said, the downfall of such a large bag was sealing them was much more difficult. I should have ordered MGK's expert bag-sealing device instead of the inoperable hank of jank I wound up having to return. Nevertheless, tape sufficed.
I almost bought the regular Complete 44Q Kit and saw this and decided to splurge. All I can say is it was well worth it. Everything colonized and re-colonized much faster. I used to use a space heater in my grow room and that added a chunk of cash to my electric bill. This setup is awesome. I am only 9 days after breaking up my spawn bag and mixing with substrate and I am seeing pins everywhere! My only suggestion is to add 3 filter disks on the opposite side of the air pump. This helped me dial it in in my room which is already kinda humid here in Georgia.
No bacteria no broken jars solid 10/10 perfect condition. Will be Buying more!❤️
I love y'all's mono tubs they work great I would like to have a top for one of them it's about 6 in taller just so I can get this one strand of mushroom that grows a foot tall but I'm going to work out something with that different with the whole group that I think.
I've already recommended your products to friends and family.
Everything I ordered from y'all has come quickly and package good.
Midwest grow kits are the best products on the market from the spore bags to the grow box and the bulk substrate! I even purchased the mushroom dehydrator which I am currently using. I highly recommend all their products!
Absolutely grateful I bought 2. Makes the whole process, start to finish, seemless. Instructions are easy to follow. Dont open the lid, just follow the directions. Keep that special little biom isolated to do its thing. FAE suggestions worked beautifully. I tried the black bag liner one run and without on another. I think I prefer without the liner. This tek was perfect. Happy growing!
