- Organic Golden Oyster Mushroom Grain Spawn
Organic Golden Oyster Mushroom Grain Spawn
|Grow location||Indoor & outdoor|
|Spawn shelf life||4 months (refrigerated)|
|Certifications||USDA certified organic|
|Bag weight||6 lbs|
Our USDA-certified golden oyster (Pleurotus citrinopileatus) grain spawn feature a tropical strain that produces beautiful clusters of bright, jaw-droppingly beautiful mushrooms with medium yellow caps and long delicate stems. A favorite at farmer's markets, they have a mild nutty flavor and aroma reminiscent of cashews. Golden oysters are great for beginners and are reliable indoor year-round producers. If kept in the right conditions, they will yield substantial first, second, and even third harvests (making them an ideal commercial variety!) As a tropical strain, they thrive with higher humidity.
Golden oyster grain spawn can be used for indoor cultivation year round. When used for outdoor cultivation, golden oysters are generally not cold tolerant and fruit prolifically in summer months.
- Golden oyster grain spawn can be used for indoor production using sawdust or straw or outdoors using straw or wood chips. It is also ideal for growing in buckets.
- Do not use grain spawn for log inoculation.
- This is not a mushroom grow kit. Golden oyster grain spawn must be combined with a substrate in order to fruit.
Upon receiving your spawn:
Remove it from the shipping box as soon as possible. Then, unfold the top of the bag, making room for air space. It's also important to check and confirm that the filter patch is not obstructed. This will help the organism breathe and continue to thrive!
Scroll down for specifications, growing, and storage guides.
- Weight: Approximately 6 lbs
- Hydration: Average of 47%
- Bags: Gusseted 2.2 mil polypropylene
- Filter: High efficiency .2 micron
- Inoculation Rates: 6 lb. bag of grain will inoculate between 120-165 lb. sterilized sawdust, and 100-130 lb. pasteurized straw
- Sterilization method: Commercial grade autoclave sterilized
Temperature 65-80°F | 18-26°C Humidity (Phase 1: Primordia) 98-100% Humidity (Phase 2: Fruitbody) 88-95% CO2 Sensitivity (Phase 1: Primordia) <1,000 ppm CO2 Sensitivity (Phase 2: Fruitbody) <1,000 ppm
- Primordia - The earliest recognizable stage of fruitbody development. Also known as “baby mushrooms” or “mushroom pins.”
- Fruitbody - A fully grown mushroom, the reproductive structure of the organism in which the spores are produced.
- CO2 sensitivity - When CO2 levels are too high, yields will decrease, stems will become long and stringy, caps will be small, and/or growth will halt.
Oyster mushroom grain spawn can be mixed into sterilized or lime pasteurized substrates including but not limited to hardwood sawdust, straw, and coffee grounds.
Note: Grain spawn must be mixed with bulk substrate before you can fruit it. If you are new to growing mushrooms, we recommend purchasing a book on mushroom cultivation.
'Growing Gourmet and Medicinal Mushrooms' by Paul Stamets
'Organic Mushroom Farming and Mycoremediation' by Tradd Cotter
Oyster spawn can be spread in chopped straw or wood chips as shown in the video below! Making outdoor beds is one of the easiest methods for growing any type of oyster mushroom.
For our complete mushroom beds pamphlet, click here.
Be sure to use clean, untreated products when making outdoor beds.
If you don't plan to use immediately, you can refrigerate your spawn for up to 4 months.
Golden oyster mushrooms develop a cashew-like flavor when cooked to a slightly crispy texture. They can easily replace button mushrooms in most recipes and pair well with many cuisines and flavors. Like all oyster mushrooms, they retain water and may develop a viscous texture when undercooked. If you prefer a firm or dryer texture, continue to cook them until their liquid has reduced and cooked off and they begin to brown.
Our grain spawn is USDA certified organic and made using organic cultures from our own culture bank. It contains a blend of locally sourced, organic, and non-GMO ingredients from farms in New England and North America.
If you’re going to consume home-grown mushrooms, make sure to cook your fresh mushrooms thoroughly with heat. If it is your first time eating this species, it is best to start with a small amount to check for allergies, even if cooked.
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Easy to grow
I was very happy with my purchase. Mushrooms grew very fast and kept on growing. On my second flush now. Hoping for more!!
Golden oyster mushroom
Satisfying!! Pins in 10 days, harvested after additional 5 days. North spore provides amazing products. This spore bag was in the refrigerator for four months, still produced 5 lbs of mushroom on the first harvest.
Organic Golden Oyster Mushroom Grain Spawn
Oh, let me tell you! I have had a great experience! I purchased this bag to make a mushroom buckets (yes, I made 2 out of one bag, and I could have made 3 but 2 buckets that's all I've had in my garage)! It was SO easy to do the whole thing, and than 3 weeks later just watch them grow! Oh, SO good! And they are SO delicious when cooked! I highly recommend this company! If you are a beginner - this is very easy to do!
Fantastic yield in outdoor containers and straw bales
I bought this grain spawn last year to experiment with and tried growing it two ways: in an old plastic trashcan that I drilled holes into and layered with chopped straw, and in a compressed straw bale. Both sat outside in my garden in between my vegetable beds, and I just watered them with the garden hose whenever I watered the veg. I lost count of how many fruitings I got through the summer! Both the container and the straw bale produced amazingly. Colonization was fast (maybe 1 month?) and produced so many mushrooms I was almost sick of them by the end of the season. Great in stir fry, spring risotto, on pizza, in scrambled eggs with chives...you name it. At the end of the season I dumped the spent straw onto my hugelkultur beds for mulch. Curious to see if any will pop up in that bed this year, as there was still plenty of mycelium running through the straw and I've continued to layer grass clippings on top, but at the very least I imagine it will make great food for the veg I'll plant in the bed this year.
Yellow oyster grain spawn
My spawn was well colonized and healthy grew some nice clusters
Shipped in about 3 weeks, looks very healthy and ready to go. I had an issue with somthing. Emailed, and the problem was take. Care of right away 10/10 will order again.
CA foothill grower
I am extremely pleased with these mushrooms. This is our third mushroom bed with North Spore spawn. We planted in a shady spot on the north side of a building and we are at 2,500 elevation. Summer temps are often over 100, and sometimes over 110. I water them daily because of the excessive dryness, we don't see rain from April to November. Mushrooms fruited after about a month. We planted 2 bags of grain and got a 4 pound harvest with our first fruiting. My hope is that this tropical variety will fruit through our very warm summers and the wine cap and blue oysters will fruit in the fall and winter and spring. Trying to get mushrooms year round.
Great product, arrived right on time. It is colonizing fast, everything is looking good so far! Very happy with this purchase!
Gave to a friend along with a laundry basket for growing. Super easy and yummy. Here is her breakfast
Growing like crazy!
I inoculated a mix of pasteurized straw, cardboard, and coffee grounds and the spawn is going bananas. Tons of growth already. I am a mushroom newbie but so excited to see the results! Very active spawn with aggressive growth.