Mushroom Supplies

Shop Mushroom Growing Supplies

Turnkey Myco offers the very best in mushroom growing and mycology supplies, including substrate, grain spawn bags, and grow bags for cultivating the highest yield mushrooms. We help you grow mushrooms at home.

Organic sterilized rye for mycology

Organic Sterilized Rye Grain Spawn

Organic sterilized rye comes in 5 lb 10T Unicorn bags. Optional injection port. We can also make custom weight bags from 1 to 6 lbs. Contact us for details.

Our organic sterilized rye grain spawn bag was designed by experienced mycologists to optimize your mushroom grow for maximum speed and size. Each grain spawn bag includes organic sterilized nutrient-fortified rye. These are packed in 10T Unicorn bags with a 0.2 micron filter pore size. This blocks airborne contaminants while providing even gas exchange.

Bags can be equipped with an optional injection port to facilitate spore colonization. We recommend about 1 lb of colonized grain spawn for every 3 lbs of manure-based substrate. Use about 5 to 10 CCs of injectable liquid culture per 5 lb grain spawn bag.

Rye Grain is Preferred for Mycology

Rye grain or rye berries are chosen by many mycologists as a preferred grain spawn for mushroom substrates. Rye has many nutrients the mycelium feeds from, it holds water well, and has small grains with a large surface area. The larger surface area allows for more mycelium inoculation points. A broad range of mushrooms and mycelium species grown abundantly using rye grain, and this is a great all-around grain spawn for growing both medicinal and gourmet mushrooms.

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3 lb Pasteurized Manure-Based Substrate

Packed in XLS-A Unicorn bags, made specifically for growing mushrooms with substrate. The bags feature a type A filter, with a pore size of 0.5 microns.

We can also make custom orders from 1 to 15 lb bags. Contact us for a custom order.

Our pasteurized manure-based substrate is engineered to produce the largest possible yield of your mushroom grow. The exact ingredients are a secret formula of pasteurized composted horse manure, coco coir, and other high-quality substrate ingredients, optimized for mycelium growth. We have progressively improved this substrate formula over time to create the perfect blend for every dung-loving mushroom species. Please note:  Substrate is hydrated to field capacity.

Mycologists at every level of experience can use our substrate in monotubs, filter bags, and outdoor beds. You can also grow your selected mushrooms from the bag or tray in a humidity-controlled grow room.

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Pasteurized Manure based substrate for mycology

Why Choose Turnkey Myco?

Mushrooms growing from home cultivation

Our mission is to make home mushroom cultivation easy, fun, and sustainable for everyone. We are committed to creating high-quality products that are innovative and reasonably priced.

The products offered on our website are ideal for both the novice and advanced mycologist. Our initial product line is focused on sterilized grain spawn and premium manure-based substrate, as well as mushroom grow kits that balance the environmental, sustainability, and practical needs of our customers.

FAQs About Growing Mushrooms

What are common mushrooms that you can grow at home?

There are a wide variety of edible mushrooms that can be grown at home. Each mushroom species has specific needs and cultivation techniques. Some of the most popular varieties people grow at home are King Oyster, Pearl Oyster, Wine Cap, Enoki, and Shiitake mushrooms. Oyster mushrooms can be grown outdoors or indoors. Wine Cap mushrooms use outdoor beds, and Shiitake use outdoor logs.

What equipment do you need to grow mushrooms?

At the most basic level, you’ll need grain spawn, mushroom spores, and substrate to get your mushrooms going. They’ll need a place to grow in, like a grow bag, a monotub, or plastic tub. The mushrooms should have a room with ambient light, not direct sunlight, that is cool. You should invest in a thermometer and spray bottle to maintain the right temperature and moisture. At an advanced level, you can get more sophisticated equipment, but to get started, it only takes a little bit of supplies.

What are optimal conditions for growing mushrooms?

Mushrooms grow best in indirect, diffused sunlight, with ample humidity and a mild temperature of about 60 to 75 degrees Fahrenheit. Each species has their own tolerance for humidity and temperature. A general rule is to create a cool, shady, moist environment for your mushrooms to grow.

How long does it take to grow a batch of mushrooms?

Indoor mushroom cultivation can take from a few weeks to a few months, depending on the species. Outdoor grows using logs can take six months to a year.

Is mushroom cultivation pet-safe?

It’s a good idea to grow mushrooms in an area where pets cannot gain access. Pets like dogs may dig up the substrate or try to eat the mushrooms, and they may get sick. Pets may also dig up the substrate and cause a mess or destroy the mushroom growth.

How does light impact the growth of mushrooms?

Mushrooms grow well in ambient light, like you would find in a forest, but they do poorly in direct sunlight. While many plants need direct sunlight, mushrooms require diffused light to thrive. If you are going to grow mushrooms in a dark room or closet, plan on purchasing a grow light to provide ambient light.

How do you fertilize mushrooms? Do you even need to?

Mushrooms gather the nutrients they need to grow from the substrate they grow in. You do not need to add fertilizers to make mushrooms grow.

How much water do mushrooms require?

Some mycologists will use a humidity-controlled environment like a humidity tent, but if you are just starting, you can use a spray bottle to create humidity. You do not want to over-water the mushrooms, just create enough moisture to allow optimal growth. Spray with a fine mist about 2 to 3 times a day, until water droplets appear on the mushrooms. Try not to miss a day. When mushrooms get dry, they will wilt and the edges will curl. Mushrooms need humidity, but not over-watering. They respond differently than green plants.

Do you need to cook home-grown mushrooms before eating them?

Yes. If you are eating home-grown mushrooms, be sure to clean them thoroughly with a mushroom brush and cook them. When it’s your first time eating a particular species of mushroom, try a small cooked piece, to make sure you are not allergic to that species.

How do you change items in your order?

Contact us at as soon as possible to change items in your order. More information is here if you need to cancel an order altogether.

Can I return an item?

Yes. We have all the details for returning items or exchanging items on this page.

How long will it take for my order to be delivered?

Most orders are processed within 2 business days, and from there, normal shipping carrier times will apply. More information here: