Yellow Oyster
Mushrooms
Grain Spawn

Pleurotus Citrinopileatus

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Yellow Oyster Mushroom Grain Spawn 2 kg

Grain spawn is a little known secret weapon of the world of mushroom cultivation. It’s made from sterilised grains that have been inoculated with a live mycelium culture.

Grain spawn contains a lot of energy for the mycelium to consume. It’s a bit like rocket fuel for mushrooms. It’ll take off like wildfire once added to your bulk substrate.

Mother Nature works her magic using spores but in a controlled environment you need to tip the scales in your favour by using clean high-quality grain spawn so you are doing your best to ensure success. 

Next Batch Due For Dispatch 16th November

Available on backorder

$45.00

Free Delivery With Every Order

Free standard delivery is included with every order. All deliveries are lodged via Australia Post.

Products listed available and in stock will be dispatched within 48 hours.

Flat rate express delivery is available with next day dispatch for any order placed before midnight 12 am.

Express post is recommended for placing interstate orders during the summer months to avoid delay and ensure freshness.

Back order – Any items on back order will be dispatched separately. Items on back order are anticipated to be fulfilled within 21 days unless stated otherwise.

What Are Yellow
Oyster Mushrooms?

The yellow or golden oyster mushroom (Pleurotus citrinopileatus) is native to eastern Russia, northern China and Japan. It grows in clusters producing boldly coloured yellow caps with a delicate, velvety texture.

You’re unlikely to find these golden delights in a supermarket near you due to their short shelf life and delicate structure.

What Do Yellow Oyster Mushrooms Taste Like?

Yellow oyster mushrooms are sweet and nutty when well cooked. Under cooked mushrooms may taste a little bitter. Braised golden oyster mushrooms and onions with sweet sherry, white pepper and nutmeg have been a mouthwatering addition to Sunday brunch.

Buy 10 Grow Bags For $10

Save on filter patch grow bags when you spend over $45 on grain spawn or grow kits. 

What Substrate Does Yellow Oyster Grow On?

Yellow oyster mushrooms will grow on a wide range of materials including sugar cane mulch, straw, hardwood, paper and coffee grounds.

For beginners we recommend starting with straw or chopped sugar cane mulch. Supplementation can be added in the form of coffee grounds or bran but will increase the chances of contamination.

Yellow oyster mushrooms are considered to be a side-fruiting mushroom compared to the king oyster or button mushroom which are top-fruiting mushrooms.

Yellow Oyster Mycelium Appearance

Yellow oyster mushroom mycelium is incredibly vigorous. Initially it is finer in appearance and structure than white oyster.

The mature spawn will often begin to form primordia within days of colonisation, this is indicative of it preparing to fruit. The maturing mycelium will produce yellow liquid metabolites which are a completely normal byproduct.

Any primordia which has formed prematurely, or in-vitro can be removed prior to using the spawn as usual. 

Yellow oyster grain spawn left to form primordia
Yellow oyster grain spawn

Using A Humidifier

Humidity can be managed through a diligent misting and fanning regime, however the introduction of a humidifier and humidity controller can help automate the process and ensure consistency.

Adding a 6L humidifier and controller to a greenhouse with the addition of a USB fan is a quick and easy way to make a low cost fruiting chamber that delivers excellent results.

Making A Fruiting Chamber

Mushrooms require humidity to grow. We recommend using a mini-greenhouse. Spraying the inside walls of the greenhouse will help raise humidity. A cheap humidifier can used to automate the process.

It’s important to ensure that the grow kit has fresh air exchange. Mushrooms produce carbon dioxide and will grow long and leggy if they require more oxygen. 

Check the product pages for species specific requirements.

Alternatively you can build a Shotgun Fruiting Chamber (SGFC) from a few common items found easily in your local hardware store.

Yellow Oyster Spawn Run

Yellow oyster mushrooms will colonise both grain spawn and substrates very quickly. Full colonisation can often expected within 10 – 14 days. Store above room temperature at approximately 23 degrees Celsius for optimum colonisation speeds.

Yellow Oyster Pinning Conditions

Keep at temperatures between 18 & 26 degrees Celsius to trigger pinning. It’s important to maintain humidity over 85% to encourage primordia. 

Primordia will often form in the high humidity environment within the sealed grow bag. Once formed it is necessary to open the bag to allow for fresh air exchange which will promote the healthy growth of mushroom fruiting bodies.

Yellow Oyster Fruiting Conditions

Fruit yellow oyster mushrooms between 20 – 30 degrees Celsius. However they will tolerate temperatures outside this range. Maintain humidity over 85% for best results. Harvest mushrooms before caps turn upwards and release spores.

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We’re a small scale producer of gourmet mushroom grain spawn and ready to grow kits located in South East Queensland. We’re passionate about fungi and we love sharing our obsession with the world.

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