Built by growers, not a marketing team

growwithmushroom started in a converted garage in the Pacific Northwest with one question: why is growing mushrooms at home still so confusing? We thought the answer was simple - a substrate that arrives ready, instructions that fit on a fridge door, and honest information about what to expect.

Our story

Our Story covers how a failed batch in a garage became a company, and the four things we hold ourselves to.

Quality and lab testing

Quality and Lab Testing explains what we test for on every batch, how to find the Certificate of Analysis for your carton, and how to read it.

Sustainability

Sustainability looks at where our substrate comes from, what our packaging is made of, and the numbers behind our footprint claims - including the ones we are not proud of yet.

Talk to us

We answer our own support email. If you have a question about a batch, a grow, or anything else, the Help Center has the fastest route to a real answer.