From Culture to Colonization
Spawn Production
Learn to create high-quality grain spawn that colonizes quickly and produces abundant harvests.
The Foundation of Every Grow
Quality spawn is the cornerstone of successful mushroom cultivation. Our grain spawn is prepared in a sterile environment, colonized with vigorous genetics, and ready to inoculate your substrate. Whether you're growing oysters, lion's mane, or shiitake, proper spawn is essential.
Shop Spawn & Supplies
Everything you need for spawn production

Blue Oyster California Mycelium Liquid Culture 10ml

Italian Oyster Mycelium Grain Spawn

Lions Mane HE3 Mycelium Liquid Culture 10ml

Lions Mane Mycelium Grain Spawn

Reishi Ganoderma Lucidum Mycelium Liquid Culture 10ml

Shiitake 3782 Mycelium Liquid Culture 10ml
Choose Your Grain
Rye Berries
The industry standard. Dense nutrients, perfect kernel size, excellent water retention.
Most PopularWheat Berries
Similar to rye with slightly larger kernels. Great for aggressive colonizers.
Fast ColonizationMillet
Small kernels provide more inoculation points. Ideal for even distribution in substrate.
Fine DistributionLab Environment
Sterile Technique Matters
Every bag of spawn is prepared in front of our laminar flow hood, ensuring contamination-free results.
From Spawn to Substrate
Prepare Substrate
Pasteurize or sterilize your bulk substrate (straw, sawdust, or supplemented sawdust).
Break Up Spawn
Once fully colonized, break up the grain spawn into individual kernels for even distribution.
Mix & Layer
Thoroughly mix spawn into substrate at 10-20% ratio, or layer for faster colonization.
Colonize & Fruit
Incubate until fully colonized, then introduce fruiting conditions. Harvest and enjoy!