Blue Oyster Grain Master Bag

Latin Name: Pleurotus ostreatus var. columbinusFruiting Temperature: 45–65 °F A cool-weather variant of P. ostreatus, the Blue Oyster is similar in appearance and culinary characteristics. Cultivation strategies closely parallel that of the Pearl Oyster. Great for outdoor cultivation in cooler climates.  FP's ready-to-inoculate, pure mushroom Grain Spawn is offered in a disposable Spawn Bag with Filter Patch (approximate yield 1¼–1½ gallon). Each unit is a first- or second-generation Grain Master that can be expanded up to 1000 times its mass. Each order of mushroom grain spawn is custom-made: lead time for grain spawn is 6–8 weeks from date of order. Please note: Unlike our ready-to-grow Mushroom Patches and Mushroom Plug Spawn, our Grain Spawn does not come with instructions. It is assumed that the purchaser is sufficiently familiar with mushroom culture technique to utilize these cultures. The books Growing Gourmet & Medicinal Mushrooms and The Mushroom Cultivator are essential