Specialty Strains

Grain spawn may take 3-4 weeks to ship depending on availability 

Here we'll list limited quantities of specialty strains we produce from our extensive culture bank, giving you a chance to grow species that aren't typically available on our website. Updated whenever there is new spawn!

All strains come in 6 lb bags of grain.

Current Offerings:

Lentinula edodes NSLE15: The shiitake strain we've all been waiting for; more amenable to soy-supplemented substrates, this strain might prove a promising complement to our LE1 and LE2. Trials are ongoing but expect similar 8-12 week incubation times and stronger yields from a typical hardwood sawdust/soyhull blend substrate.

Grifola frondosa NSGF6: A commercial strain from Belgium. Hen of the woods, or maitake, is slow-growing, difficult to cultivate, and will be ugly if it's your first (or 17th) attempt. Fruiting temperatures should stay cool (50-65), and requires specific light and oxygen requirements to develop its distinct fronds.

'Popham Oyster' Pleurotus ostreatus NSPO2: Our elm oyster strain; produces highly branched clusters of off-white/tan mushrooms that yield well in both cold and warm temperatures.