3.5 lb. White Oyster Mushroom Spawn Bag


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White Oyster Mushroom Spawn: Commercial Strain

Note: Processing time for mushroom spawn is 4-weeks

Species & Variety: Pleurotus ostreatus

Grow your own – with our White Oyster Grain Spawn bags. Use this 5 lb. bag of colonized mushroom spawn to inoculate bulk mushroom substrates. ( hardwood, straw, etc.)

  • 3.5 lb bag of White Oyster Grain Spawn
  • Inoculates 150-200 lbs. of Bulk Substrate (15 – 20 x 10 lb. bags)
  • Made With Organic Rye Berries
  • Sterilized And Free of Contamination
  • Commercial Variety
  • Make Your Own Mushroom Kits


White Oyster Mushroom Characteristics


  • Bold and Flavourful
  • High Yield
  • Fast Growth
  • Produces Large Caps
  • Fruiting Time = 6 days


Order Processing Time


  • 4-Weeks


When you place an order with us – we begin to grow your mushroom grains. During this time we test for growing speed and check for contamination. Ensuring that you receive a commercial-ready product with a high success rate.

  • CAD
  • USD
Product Information

White Oyster Mushroom Spawn For Commercial or Homegrown Applications

Our white oyster mushroom spawn is created in our clean room facilities in Brantford, Ontario. We ship our spawn anywhere in the US or Canada.

When buying spawn from us you can expect:

  • Sterilized spawn (free of contamination)
  • Ready To Inoculate to Bulk Substrate
  • Made With Organic Ingredients
  • Commercial High-Yielding Varieties

How Long Does It Take To Ship?

Spawn customers should allow 4-weeks for their spawn order to be delivered. In some cases we will have the spawn in-stock and ship it immediately. Most of the time, however, the 4-week wait will apply.

Why Does It Take 4-Weeks?

To avoid shipping you out-of-date spawn we make your orders on-demand. We also test all spawn bags for vigour to ensure the final product is contaminant-free.

Planning for Commercial Growers

When sourcing spawn it’s a common occurrence in the industry – and necessary for your business to plan ahead. Securing your grain spawn for growing is essential to running a successful mushroom operation.

  • Order 4-weeks before you need the product
  • Subscribe for regular monthly deliveries
  • Avoid production delays
  • No Need for expensive equipment

Using Your Spawn

If you need more information about how to use your White Oyster Mushroom Spawn we have written a guide on just that!

Take a minute to read this informative guide. Click here to read the guide.

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white oyster mushroom spawn

3.5 lb. White Oyster Mushroom Spawn Bag

  • CAD
  • USD