Golden Oyster Mushroom Growing Kit

Rating: 4.8 out of 5 (10)


Golden oyster mushrooms are aromatic, delicate, and delicious. They also have a hint of nuttiness (similar to cashews) and are beloved by chefs for their texture and flavor. The perfect panko-fried fare, they also pair perfectly with pasta, risotto, noodle stir frys, and more!

These 'Spray & Grow' kits are beginner-friendly, require no additional equipment, and will have you enjoying fresh homegrown mushrooms in roughly 2 weeks.

Made In The US


Recyclable Packaging


One 4.5lb Mushroom Growing Kit and spray bottle.

USDA Certified and yielded large flushes of delicious mushrooms. What's not to love?

Your kit includes an amended sawdust block fully colonized with mushroom mycelium. It may appear covered with a soft, white, mold-like substance - that's the mushroom mycelium! It is completely normal. The mycelium of some species is more prominent than others.

If you're not ready to use immediately, your Blue Oyster Spray & Grow Kit can be refrigerated or stored in a cool dry place, out of direct sunlight, for up to 3 months. 

Nothing! This kit includes everything needed.


Cut the front of the package open by cutting an X with a sharp knife


With included water sprayer. Repeat 2-3x a day


Place your kit in a humid location, away from direct sunlight. The warmer the environment, the faster they will grow.


You can expect to be harvesting mushrooms 10-20 days later!

Which Microgreens Kit Is Right For You?

Growing Methods hydroponic Hydroponic hydroponic soil soil hydroponic
Growing Medium Proprietary ‘seed quilts’ made from coconut fiber Virgin fluff fibers produced from non-chlorine bleached spruce wood none coco coir coco coir Jute matt
Includes a light no yes no no no no
Included seeds 2 varieties - varies 3 varieties Red Cabbage, Radish and Mustard none 4 varieties. Radish, Arugula, Beets and Tatsoi 4 varieties. Arugula, Beets, Komatsuna and Radish 6 varieties. Radish, Kale, Rainbow Mix, Mustard, Spicy Mix and Broccoli
USDA Organic Seeds? Some, not all Yes NA No No Yes
Grow Area 1 x Large 3 x Medium 1 x Medium/Large 1 x Small 1 x Medium 3 x Small
Refill Cost $$ $$$ $ $$ $$ $$

Which Grow Light Is Right For You?

Wattage 20W / 40W 20W 11W 16W / 32W 7W
PPF Small: 23.7 μmol/sec; Large: 42 μmol/sec 25.95 μmol/sec 17 μmol/sec - 7.3 μmol/sec
Efficacy (PPF/W) 1.05 - 1.2 1.3 1.55 - 1.05
Color Temperature 3000K 3000K 3000K 3914K 2700K
Mounting Hanging from wall or ceiling Inside a pendant or desk lamp Under cabinet or on a wall Under cabinet, wall or vertically Inside a pendant or desk lamp
Suitable For Anything Anything Houseplants, Herbs, Leafy Greens Anything Small herbs, seed starting
Water Resistant No No No Yes No
Cost $$$ $$ $$ $$ - $$$$ $

Check Out Some Of Our Other Products

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Check Out Some Of Our Other Products

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Inside your Spray & Grow Kit is a living organism, so we recommend activating it upon receipt. If you need to wait, you can store them in a cool, dry place out of direct sunlight or in the fridge for around 2-3 months.

No. These kits are designed to stay inside the box.

After removing the front panel of the box along the perforated lines, cut an X into the exposed plastic. Enough oxygen gets to the block through this cut and it directs the mushrooms to form there. Remember to leave the plastic flaps of the X on the bag, they'll help to keep moisture in. The mushrooms will easily grow out of the sliced X section, so no need to open it up more as they fruit.

You don’t need to empty the bottle each time you spray, but it is important to get the area where you cut open the bag nice and damp! Try 5-10 sprays each time. It can take a little trial and error to get the frequency and amount just right. If the surface of the block seems very dry the next time you spray it, you should give it a bit more water or water a bit more often. If you run AC or live in an arid climate, using a humidity tent can be useful to prevent your block from drying out.

Chances are, that's not mold - it's mycelium! Your kit includes an amended sawdust block with mushroom mycelium growing through it. The block may appear covered with a soft, white, mold-like substance. That's the mushroom mycelium, and it's totally normal and healthy for your mushroom block. The mycelium of some species is more prominent than others. For example, lion's mane mycelium tends to be finer and more difficult to see while oysters can develop into a very thick and leathery mat. If you are still unsure about what's growing on your kit, reach out to us with a photo and we will help you identify what's going on.

If your kit has black, green, or orange patches it's possible your kit was damaged in transit and has mold. Reach out to us with a photo and we'll make it right.

Customer Reviews

Based on 10 reviews
Claire R.
Golden oyster mushrooms

Loved these! They are so easy and they grow so fast once you get them going. I saw tiny little pins on Wednesday morning and by Friday morning, they had become a full grown mushroom. Delicious for eating too!!

Mike P.
First Time Golden Oyster

First Time Golden Oyster

Shea G.

The gift that keeps on giving. So fun to share with your friends.