Bunch of oyster mushroom
oyster mushroom cluster
ready-to-grow seedling
Bunch of oyster mushroom
oyster mushroom cluster
ready-to-grow seedling

Organic Yellow Oyster Fruiting Block

  • 🍄 Organic Yellow Oyster Mushrooms: Complete kit for growing organic yellow oyster mushrooms at home, including all the necessary supplies.
  • 🌱 EASY TO GROW: Ready to use—just water it and follow the instructions for successful growth.
  • 💪 HIGH YIELD: Harvest up to 1.5 kg of delicious fresh yellow oyster mushrooms over 2 to 3 harvests.
  • 🌍 ORGANIC PRODUCTION: Our bales are certified organic ("BE-BIO-01") by Certisys (Belgium) and are guaranteed to be free of pesticides and GMOs.
  • 📘 INSTRUCTIONS: Download the instructions for the bundle here.
  • AVAILABILITY: Depending on inventory, delivery times may vary from 3 days to 3 weeks. Please feel free to contact us for more details.
€18.00 Sale
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🍄 Variety: Yellow Oyster Mushrooms

Our fruiting blocks let you grow your own yellow oyster mushrooms at home.

  • harvest Between 1 and 1.5 kg of fresh mushrooms over 3 harvests.
  • Ingredients: Water, sawdust, grains (including alfalfa), lime, mycelium. Net weight per bale: approx. 4.8 kg. 
  • Dimensions: 25 x 20 x 20 cm (L x W x H)
  • Origin: Belgium (Mycosphere)

Note: The harvest estimates harvest based on our production experience but are not guaranteed. Yields depend on growing conditions and the grower’s experience.

(*) Our bales are certified organic ("BE-BIO-01") by Certisys (Belgium).

BEBIO01 Organic Potting Mix

Legal notice for Belgium: "Organic growing medium: Pasteurized and inoculated mushroom-
ing medium" (Exemption No. EM470.J)

📋 Usage

If you can't use the bunch right away, you can store it in the fridge for about two weeks. This variety thrives in temperatures between 15 and 29°C, with the ideal range being between 18 and 22°C.

To ensure vibrant colors, make sure the plant gets plenty of light. Make a slit in the side of the bag at the substrate level, remove the air from the bag, and place it with the opening on its side. Keep the bag moist until buds appear, maintaining a humidity level of 80 to 90%. Use our mini-sprayer or professional misters to maintain optimal humidity.

🔍 fruiting settings

fruiting temperature 15–29°C
Relative humidity 85 to 95%
fruiting period 3 to 5 days
CO2 concentration 500–1,000 ppm
fresh air exchange 4 to 8 cubic feet per hour
Light requirements 500 to 1,000 lux
Number of harvests 2 to 3 harvests, 10–14 days apart

 

🏡 Where should you grow it?

Grow them indoors (kitchen, garage, basement). Oyster mushrooms need a little light to grow. Opt for indirect sunlight and avoid anything that might dry out the substrate: drafts, radiators, and direct sunlight. Oyster mushrooms like humidity but don’t like being constantly soaked.

📦 harvest Storage

Harvest the clusters before the edges of the caps curl up and start to turn slightly brown. Early in the growth stage, the caps can double in size every day. When growth begins to slow down, it’s usually the right time to harvest. Harvesting young mushrooms ensures better shelf life, as well as a brighter color and a more tender texture. Pull the clusters out by twisting them. Remove any remaining stem pieces from the substrate and keep it moist until the harvest .

We usually get three harvests from this type of plant. The first harvest the most abundant, and each subsequent harvest yields half as much.

Oyster mushrooms will keep for about 7 to 10 days in a paper bag in the refrigerator. For longer storage, you can freeze them or can them.

💡 Tips

To promote growth and productivity in second and third crops:

  • Rehydrate the bags by soaking them in water overnight, then drain them and return them to the growing medium.
  • Give the bundle a " cold shoc placing it in a cool place (such as the refrigerator or outdoors) overnight. This simulates the onset of winter and encourages fungal growth.
View all our delivery times

Customer Reviews

Based on 16 reviews
75%
(12)
13%
(2)
13%
(2)
0%
(0)
0%
(0)
A
Anonymous
Several mushroom harvests, delicious tastings.

This is my second order; the previous one was in November 2024. Every time, there’s been a problem with Chronopost delivery—the package isn’t delivered to the intended location even after several days’ delay. No explanation provided.

V
Van G.V.
A real success

These mushrooms are a delight both to look at and to taste. They’re a real treat to grow at home. I’m very proud of my first attempt.

C
Clem
👌

Perfect— harvest 8 days after opening (slitting) the bag!
My first one—I’m super happy with it, and can’t wait to try the other varieties (which are taking a little longer to arrive ^^)!

A
Aurélien
Nikel is on top form! 👍 The primordia hatched after four days

Nikel is the best! 👍 The primordia emerged after four days—yellow and pink oyster mushrooms with an unbeatable flavor! Thanks, Mycosphère—keep up the great work. Best regards.

A
Antonio
All good

All good and easy to grow

Reviews in Other Languages

A
Anonymous
Nothing yet

Nothing yet

E
ETTORE I.P.
Order arrived quickly and was in perfect condition

The spawn arrived quickly and is in excellent condition. After a week, the first mushrooms are already starting to grow.

C
Claude M.
Excellent

A great package. It looks fantastic!

Organic Yellow Oyster Fruiting Block

Organic Yellow Oyster Fruiting Block
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