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North Spore Boomr Bag Substrate

Please allow your Boomr Bag to sit for 1-2 weeks upon arrival to be sure product was not compromised during transit. Boomr Bags can be stored at room temperature for several months before use.

'Boomr Bag' is a horse manure based sterile mushroom growing substrate.

With a vertically integrated spawn facility and team of trained mycologists we provide premium mushroom supplies to innovative growers around the world. Through years of research and development we’ve created the best sterile mushroom substrates on the market.


Nate 02/04/2021
United States United States

Flawless order

First time buying from y’all and the experience was easy from start to finish. High quality “dirt” in the box!!


Rick B. 02/01/2021
United States United States

Happy every time

First, this is always one of the most professionally boxed packages I've received, seriously like perfect every time. Have had great success, last grows were 4 monotubs, 1 got contam'd but 99% sure it was my doing. Had massive flushes. Just ordered more.


Noe . 01/30/2021   Verified Buyer
United States United States

Boomer bag substrate

Overall I'm very satisfied with my purchase. This was my 1st time growing mushrooms. All went well. I will be purchasing more products from here in the near future. I highly recommend.


Sarah m. 01/29/2021   Verified Buyer

United States United States

Boomer kit well worth.

I received my order super quick. Had fast colonization and overall satisfied with my order. Thanks northern spore for making it super easy. Plan on getting some reisi from you guys soon.


 Janelle 01/28/2021   Verified Buyer

United States United States


Clean and well packaged. Definitely purchasing again!

Collections: Growing Media

Category: North Spore

Type: Growing Media

Vendor: North Spore