Mushroom Substrate

Grow mushrooms at home with our high-quality mushroom substrate. We’ve perfected the formula, and our collection includes Earthworm Casting and CVG Sterile Mushroom Substrate.

Start growing your favorite mushroom varieties and spores today with our collection, which helps you cultivate at home. Discover them below and receive free US shipping.

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What Our Customers Say

Consistency Everytime - We ensure the grain and substrate are separated to facilitate easy monitoring and faster colonization. This is unlike many large suppliers, who mix the grain and substrate to create a homogeneous mixture.
Sealed Before Sterilizing - Through our proprietary process, we seal the bags before sterilization to ensure no contamination. Shelf-stable food products are made the same way, which guarantees product integrity.
Meticulous Attention To Detail - We hand-fill every bag, carefully packing the ingredients and neatly folding the bag to prevent premature mixing. We place these in a perfect-size box and protective liner bag for further protection.
Highest Quality Ingredients - We source local organic ingredients from trusted USA businesses, prioritizing freshness and quality. These are carefully prepared in-house to ensure consistency, purity, flavor, and nutritional value in every batch.
A Superior Result - We use temperature probes to carefully monitor the core bag temperature during sterilization to achieve and maintain the precise time and temperature targets needed for for consistent quality, safety, and reliability in every batch.
Consistency Everytime - We ensure the grain and substrate are separated to facilitate easy monitoring and faster colonization. This is unlike many large suppliers, who mix the grain and substrate to create a homogeneous mixture.

Premium Mushroom Substrate For Sale At Affordable Prices

At Mushroom Spawn Store, we supply a wide range of products designed to give you the best results possible. Our substrate collection features all the essentials that are needed to start your mycology journey, including:

Earthworm Casting Mushroom Substrate
CVG Blend Sterile Mushroom Substrate

Customer satisfaction is our top priority; we take pride in having thousands of satisfied customers across the USA. With nearly 20 years of experience in mushroom cultivation, our knowledgeable and friendly team is on hand to guide you through every stage of the mushroom growing process, from setting up to harvesting.

You can feel confident in your mushroom cultivation journey with our products and expert support.

Contact us today!

We’ve created the perfect mushroom-growing product and accessories that are guaranteed to give you superior results every single time. Made from the highest-quality organic and food-grade materials, our collection of mushroom substrates are designed to make your life as easy as possible.

Our products are designed for both beginners and experienced mycologists.

Standout features include:

  • Monotub fruiting chambers and all the necessary accessories
  • Four mini all-in-one mushroom grow bags
  • One bag of grain spawn
  • Mushroom substrate
  • Casing mix

FAQs

Yes! Spent substrate can be reused. After you have harvested your mushrooms, the substrate can still constrain nutrient content and beneficial microorganisms that are beneficial for plants and even another flush of mushrooms.

The recommended spawn to mushroom substrate ratio for mushroom growth is around 1:2 to 1:4.

Wood-loving mushrooms, such as oyster mushrooms, grow on decomposing fibres, such as wood and coffee grounds.

If you use the incorrect sterilized substrate, you could end up with reduced or delayed growth, as well as contamination. This is why research is essential, or you may have to start again.

Yes, all our products at Mushroom Spawn Store are shipped in plain brown boxes, so you can safely and discreetly begin your mushroom cultivation journey.

Yes, we do! You can check our shipping page for further information.

After about 3 weeks, you will have enough to harvest your mushrooms. You will be able to continue harvesting this batch of mushrooms for up to 60 days, dependent on the mushroom species.

Our collection of mushroom substrates are suited for first-time growers, as well as mycology enthusiasts. They are a great way to get started in the fascinating world of mushrooms and reap the physical and mental health benefits in no time.

Yes! For orders over $50, you can choose to pay in 4 installments using ShopPay.