North Spore's USDA-certified organic 'spray & grow' mushroom growing kits are ideal for beginners, hobbyists, or anyone who loves mushrooms.
They're fun, easy, delicious, and only take about two weeks to grow your first flush!
Organic 'Spray & Grow' Mushroom Growing Kits
Grow your own fresh mushrooms year round
Blue oyster mushrooms are velvety, savory, and mild and pair perfectly with just about any recipe! They are a staple here at North Spore (going all the way back to when we began as an urban farm) and one of the easiest and most reliable kits. You won't regret it!
Voted best grow kit
Setting up your kit is fast and easy!
Watch this video to see just how easy our spray and grow mushroom kits are. Simply remove the box cover, slice open the bag, and spray 2-3 times per day until your mushrooms are ready to eat!
Ready to harvest in about 2 weeks!
Once activated, your kit should start 'pinning' within 6-10 days. From there, it usually only takes 4-5 days for your mushroom kit to produce it's first full flush!
Give your grow kit a second life outside
When your kit no longer produces any flushes indoors, you can still use it to grow mushrooms! Watch this video to learn more about planting your grow kit in the garden.
More than 1,000 five star reviews
"The quality of my Blue Oyster kit and the customer service from North Spore is unbeatable. It was my first time experimenting with growing mushrooms and this was a simple and amazing way to start. Now I am hooked!"
Anthony C.
"North Spore's spray and grow kits are awesome. I harvested more than a 1/2 lb of mushrooms less than 2 weeks after I opened the box and I already have a second flush going! This was so much fun. I would definitely recommend."
Lorie A.
"North spore mushrooms are so easy to grow and beautiful to look at! I’m already on my second flush. Their quality is way better than other mushroom kits and the taste is out of this world! I highly recommend them."
Peter B.
Sustainably handmade in Maine, with love
All of our mushroom growing kits are made from a blend of locally-sourced, organic, and non-GMO ingredients from farms in New England and North America. Our easy mushroom growing kits are optimized for beginners and offer a simple and fun way to grow mushrooms indoors. Kits include a spray bottle and detailed instructions.
We 100% guarantee your first flush of mushrooms, but hope you'll try for 2 or 3! With continued proper care (humidity and air flow), you may be able to get subsequent flushes from your mushroom growing kit. And once your grow kit is finished, you can even give it a second life outdoors in your garden!