Cosmic Queen Oyster Mushroom Grow Kit

9 Reviews

Delicious, home-grown Queen Oyster mushrooms in just two weeks! 


  • USDA Certified Organic
  • Fast-growing and easy to use
  • Comes with complete instructions and recipe ideas
  • Experience the excitement of watching mushrooms double in size every day!

 Difficulty: Beginner

The Cosmic Queen Oyster mushroom is striking with its stark contrast of white stems and chestnut brown caps.

This delicious member of the Oyster Mushroom family is delightfully meaty in texture like a scallop, with a savory nutty flavor. Makes an excellent meat alternative. Grow them in your home following our simple instructions (included). Our Cosmic Queen kits arrive in black cultivation bags. Just make sure they have the three basic elements of raising a successful mushroom crop: Lots of humidity, mild temperatures, and plenty of fresh air. When the balance is just right you will be rewarded with a bountiful crop of these beautiful and delicious mushrooms!

Detailed instructions for your using your mushroom growing kit and creating the proper habitat are included. This kit is heat sensitive and performs best when grown around 65 degrees F. 


Wondering how to grow Cosmic Queen Oyster mushrooms at home? Find detailed instructions here.

The Cosmic Queen Oyster Mushroom Grow Kit is just one of the mushroom grow kits we offer! Find all of our mushroom grow kits here!

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United States United States

The most prolific mushroom block I have ever seen.

The cosmic queen is a superb mushroom block to purchase. They grew quickly and were fantastic looking and tasting. An absolute winner!

United States United States

Really produce well

Darn, I was hoping to be able to attach a picture. I just picked my first batch of mushrooms and got nearly a pound of cosmic queen! I can see a lot more pin mushrooms starting too. The kit is working well!

Michael S.
United States United States

Easy to Grow and Delicious

The Cosmic Queens grew fast and big. I harvested 11 oz so far and there is still at least 5 more oz ready to pick on the first the bloom.

Linda B.
United States United States

Wonderful Mushrooms

This was my first time growing Cosmic Queens and they grew very well! There were so many of them and they are excellent! I love how each variety grows and tastes so different.

valerie a.
United States United States

Cosmic Queen Oyster Mushroom kit

so far they have not started to grow. I am waiting!. my otheroyster mushrooms grow fine

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