Growing your own mushrooms is an ambitious and fun endeavor. It requires a gentle touch, so before you can get your hands dirty—literally and metaphorically—you need to know what mushroom growing supplies you’ll need to get started. The easiest path is a complete mushroom grow kit that bundles everything below, but here's what goes into one.
Mushroom Spawn
Let’s start with the basics. Mushroom spawn is the living mycelium used to grow mushrooms. It’s comparable to the seeds that farmers and gardeners use to grow plants. Your spawn should be contaminant free. For this to happen, buy from reputable sellers, since physical shops rarely carry mushroom grow supplies. Check reviews if you need to. This will prevent you from accidentally purchasing contaminated spawn. You can buy ready-to-use colonized grain spawn, or start from liquid culture and sterile grain. Our guide to grain spawn explains the options.
Mushroom Substrate
This is what your spawn grows on as the mycelium colonizes it. Mycelium is the “growth matrix” of the mushroom. It makes up the mushroom’s body under the earth. Substrate gives the mycelium the minerals and nutrients it needs to grow strong and healthy. Its base can comprise anything from sawdust to coffee grounds to manure. Some mushrooms grow better in some substrates than others. Substrate is a key mushroom-growing supply you need to start — see what mushroom substrates are, then shop bulk substrate.
Grow Bags and Fruiting Chambers
This is the container in which your mushrooms will grow. All-in-one grow bags combine sterilized grain and substrate in a single filter-patch bag, making them the simplest option for beginners. For larger harvests, a monotub gives your mushrooms a humid fruiting chamber with controlled fresh air exchange.
During colonization, bags and tubs hold the humidity and CO2 levels mycelium likes. Once it's time to fruit, mushrooms need more fresh air and steady humidity. With the right temperature, humidity, and airflow, your mushrooms will grow in no time. Learn more in what triggers mushroom fruiting.
Clean Technique Basics
Contamination is the number one reason first grows fail. Gloves, isopropyl alcohol, a clean workspace, and a still air box or flow hood for inoculations make a big difference. A simple thermometer and hygrometer lets you keep an eye on conditions.
In short, mushroom growing is a precise science, but one that’s fun and rewarding. Not sure where to begin? Compare options in our best mushroom grow kits guide or start with a beginner-friendly kit.