Our Strains

Delivering Mushroom Spawn to Growers Across the Globe

At Amycel and Spawn Mate, we develop the best new mushroom strains for all growing conditions. As the world leader in mushroom strain development, our strains are sold in five continents and 37 countries, and 90% of North American growers grow our top 2 proprietary brown mushroom spawn strains!

Commercial mushroom cultivation requires strains that consistently provide a high yield. Our facilities in the United States produce mushroom spawn on innovative substrates that match perfectly with our nutritional supplements.

For purchases, please complete the order form on our mobile ordering app.

Delivering Mushroom Spawn to Growers Across the Globe

At Amycel and Spawn Mate, we develop the best new mushroom strains for all growing conditions. As the world leader in mushroom strain development, our strains are sold in five continents and 37 countries, and 90% of North American growers grow our top 2 proprietary brown mushroom spawn strains!

Commercial mushroom cultivation requires strains that consistently provide a high yield. Our facilities in the United States produce mushroom spawn on innovative substrates that match perfectly with our nutritional supplements.

For purchases, please complete the order form on our mobile ordering app.

Collage of white button and brown mushrooms in a tray

Mushroom Strains You Can Trust

Amycel produces the highest quality mushroom spawn. Our innovative research and breeding programs focus on creating new high-quality strains with:

  • An attractive appearance and excellent shelf-life
  • Fast and consistent spawn runs
  • Competitive yields in a wide variety of growing conditions

To ensure quality and consistency we test our spawn under a variety of growing conditions and regularly screen them in our strain certification program. These tests occur at our research and testing facilities and at commercial mushroom farms across North America. You can trust our strains, because… We’re growers too!

Scientist in Amycel's research and development facility conducting testing

Our Mushroom Strains

Amycel offers four strains of white mushrooms, and our two proprietary brown mushroom strains can be harvested as specialty mushrooms such as Baby Bellas (also known as Crimini or Cremini) and Portabellas (also known as Portobello).

Our Mushroom Strains

Amycel offers four strains of white mushrooms, and our two proprietary brown mushroom strains can be harvested as specialty mushrooms such as Baby Bellas (also known as Crimini or Cremini) and Portabellas (also known as Portobello).

Amycel's white button mushroom spawn is fruiting

White Mushroom Strains

The white button mushroom (Agaricus bisporus) is the world's most common commercially grown and consumer-preferred mushroom. Amycel’s strains have been developed primarily for the high quality necessary for the fresh mushroom market. We've developed these strains to suit your growing conditions and marketing needs.

amycel-spawn-strains-phoenix

Phoenixx. Amycel’s Phoenixx is a premium off-white hybrid strain that produces a large heavy-bodied mushroom. Phoenixx is an aggressive and productive strain with competitive yields.

amycel-spawn-strains-triple-x

Triple X. Our most vigorous off-white hybrid, Triple X, is faster in all phases of growing and production. Triple X produces mushrooms with excellent quality and density; it is well-suited for a wide range of growing conditions.

amycel-spawn-strains-delta

Delta. The Delta strain is a more moderate pinner compared to our other off-white hybrids. Delta can be tailored to produce a wide variety of size mixes and is best for growers looking to produce superior-quality mushrooms to compete in the fresh market.

sword going through a rock gray logo

Exxcalibur. The Exxcalibur strain is our newest off-white hybrid and combines the best features of Phoenixx and Triple X. This strain is ideal for growers looking for a vigorous colonizing strain combined with large heavy-bodied mushrooms.

Patented brown mushrooms

White Mushroom Strains

The white button mushroom (Agaricus bisporus) is the world's most common commercially grown and consumer-preferred mushroom. Amycel’s strains have been developed primarily for the high quality necessary for the fresh mushroom market. We've developed these strains to suit your growing conditions and marketing needs.

amycel-spawn-strains-phoenix

Phoenixx. Amycel’s Phoenixx is a premium off-white hybrid strain that produces a large heavy-bodied mushroom. Phoenixx is an aggressive and productive strain with competitive yields.

amycel-spawn-strains-triple-x

Triple X. Our most vigorous off-white hybrid, Triple X, is faster in all phases of growing and production. Triple X produces mushrooms with excellent quality and density; it is well-suited for a wide range of growing conditions.

amycel-spawn-strains-delta

Delta. The Delta strain is a more moderate pinner compared to our other off-white hybrids. Delta can be tailored to produce a wide variety of size mixes and is best for growers looking to produce superior-quality mushrooms to compete in the fresh market.

sword going through a rock gray logo

Exxcalibur. The Exxcalibur strain is our newest off-white hybrid and combines the best features of Phoenixx and Triple X. This strain is ideal for growers looking for a vigorous colonizing strain combined with large heavy-bodied mushrooms.

Brown Strains

Amycel's patented brown hybrid strains are the two most widely-grown brown mushroom strains worldwide. They are prized for their color, shape, density, and productivity. The Heirloom and Brawn strains are patent protected and only available from Amycel.

Brown Strains

Amycel's patented brown hybrid strains are the two most widely-grown brown mushroom strains worldwide. They are prized for their color, shape, density, and productivity. The Heirloom and Brawn strains are patent protected and only available from Amycel.


amycel-spawn-strains-heirloom

Heirloom. The Heirloom strain is a heavy-bodied brown hybrid mushroom well suited for both Portabella, Baby Bella, and Crimini production. It is the number-one-selling brown hybrid in the world. Heirloom is genetically unique and patent protected; it cannot be cross-CAC'ed with any other brown strain.

amycel-spawn-strains-heirloom

Heirloom. The Heirloom strain is a heavy-bodied brown hybrid mushroom well suited for both Portabella, Baby Bella, and Crimini production. It is the number-one-selling brown hybrid in the world. Heirloom is genetically unique and patent protected; it cannot be cross-CAC'ed with any other brown strain.

amycel-spawn-strains-brawn

Brawn. Our Brawn brown hybrid mushroom often produces a darker cap than Heirloom. It is ideal for growers looking for an alternative to Heirloom and is well-suited for growers looking to produce a variety of size mixes. Brawn is genetically unique and patent protected; it cannot be cross-CAC'ed with Heirloom or any other brown strain on the market.

amycel-spawn-strains-brawn

Brawn. Our Brawn brown hybrid mushroom often produces a darker cap than Heirloom. It is ideal for growers looking for an alternative to Heirloom and is well-suited for growers looking to produce a variety of size mixes. Brawn is genetically unique and patent protected; it cannot be cross-CAC'ed with Heirloom or any other brown strain on the market.

We Can Help You Grow Your Business

Our entire team is committed to helping you grow your business from strain and substrate to the spawn delivered to your farm. Contact us today and find out how we can help you grow.