$22.99
Grow gourmet Grospore Elm Oyster mushrooms — also sold as White Elm mushroom — with our lab-tested 10ml (10cc) liquid culture syringe. This is true Hypsizygus ulmarius, known for broad cream-to-tan caps, tender texture and reliable growth. Live mycelium, not spores.
Cultivate Elm Oyster mushrooms with our premium Grospore 10ml (10cc) liquid culture syringe. Known for their broad cream-to-tan caps, tender texture, and mild savory flavor, Elm Oyster mushrooms are an appealing choice for home growers, culinary enthusiasts, and mushroom hobbyists. They are also sold as White Elm mushroom, White Elm Oyster, Elm Oyster Tree mushroom, and shirotamogitake in Japan.
Their attractive growth, versatile culinary uses, and dependable cultivation characteristics make them a rewarding addition to any gourmet mushroom collection.
Elm Oyster is one of the most commonly mislabelled cultures on the market. Despite the name, it is not a Pleurotus at all — this culture is true Hypsizygus ulmarius, not Pleurotus ulmarius (sometimes sold as ElmA) and not Pleurotus ostreatus, which several suppliers list it as by mistake. It is also a different mushroom from Beech / Shimeji (Hypsizygus tessellatus), which shares the genus but not the species.
Our Grospore Elm Oyster / White Elm Liquid Culture Syringe contains vigorous living mycelium, lab-tested and prepared in our ISO-certified cleanroom to support healthy colonization and dependable cultivation performance.
Each 10ml (10cc) syringe offers:
Refrigerate your liquid culture syringe on arrival. Stored at 35–45°F (2–7°C), upright and out of direct light, it stays viable for 4–6 months. Orders ship fast from Oregon in discreet packaging, with tracking on every order and a 30-day return policy on unused items.
Elm Oyster mushrooms offer a balanced combination of attractive appearance, mild flavor, and satisfying texture. Their versatility in the kitchen and rewarding cultivation characteristics make them an excellent variety for both newer growers and experienced mushroom enthusiasts.
Whether you’re expanding your gourmet mushroom collection or looking for a versatile edible variety, Elm Oyster is a dependable and enjoyable choice.
Add a distinctive gourmet mushroom to your cultivation lineup with our Grospore Elm Oyster Mushroom Liquid Culture Syringe. Each 10ml (10cc) syringe contains lab-tested, vigorous living mycelium ready for your next mushroom growing project.
Gourmet and edible cultivation species only. GROmagic does not sell psilocybin or Psilocybe cultures. For cultivation use — not a food, drug or dietary supplement.
R.L. –
Reached out before ordering because I wanted to confirm this was true Hypsizygus ulmarius, and support was fantastic. They answered quickly, clearly, and with real detail. That kind of help made me feel great about buying from them.
Glenn Parker –
Directions were clear on storage, inoculation amount, and basic handling. Easy to follow.
Geraldine, MO –
After years ordering cultures, these instructions stay the clearest on storage, dosing, and sterile handling.
Geraldine, MO –
After years ordering cultures, these instructions stay the clearest on storage, dosing, and sterile handling.
Chester –
Having rotated a lot of gourmet cultures over the years, I mainly care about how they actually perform once they hit grain. This one gave me steady, even colonization and stayed clean through transfer. Fruiting was reliable too, with good sized caps and a nice dense texture compared with a few elm cultures I have tried before. It has become one of the easier varieties for me to keep in the lineup.
Anonymous –
Storage and inoculation steps were clearly explained. Easy to follow without guessing.
Lena P. –
Packed well, shipped quickly, and the syringe was easy to divide between a few grain jars. I liked that the storage info was clear, since that is the kind of thing newer growers usually have to dig around for. Colonization started sooner than my last culture from another shop, so for me this felt like good value and less hassle overall.
Anonymous –
After ordering cultures here on and off for a few years, I’ve learned that good customer service matters just as much as what shows up in the box. I emailed before buying this one because elm oyster gets mislabeled all over the place, and I wanted to confirm it was actually Hypsizygus ulmarius. The reply was direct, specific, and sounded like it came from someone who knew the difference instead of pasting a canned answer. I also asked about storage since I was not using it the same week, and they gave me a clear temperature range and timeline that matched the insert. That kind of consistency is why I keep coming back. The culture itself looked healthy, but the reason I felt confident ordering again was how professionally my questions were handled.
Patrick Noland –
Picked this up for my brother because he likes trying unusual gourmet varieties, and I wanted something a little more thoughtful than another kitchen gadget. From a gift standpoint, this felt like solid value. The syringe size was enough for him to do multiple jars, so it did not come across like an expensive novelty that disappears in one use. He also appreciated that it was a liquid culture rather than spores, since that meant less waiting and less guesswork for the same money. What made it feel worth the price to me was that it was clearly labeled as the true species, which matters when you are buying for someone who actually knows mushrooms. He said the culture looked healthy and gave him a clean start, so I felt like the gift delivered real usefulness.
Patrick Noland –
Picked this up for my brother because he likes trying unusual gourmet varieties, and I wanted something a little more thoughtful than another kitchen gadget. From a gift standpoint, this felt like solid value. The syringe size was enough for him to do multiple jars, so it did not come across like an expensive novelty that disappears in one use. He also appreciated that it was a liquid culture rather than spores, since that meant less waiting and less guesswork for the same money. What made it feel worth the price to me was that it was clearly labeled as the true species, which matters when you are buying for someone who actually knows mushrooms. He said the culture looked healthy and gave him a clean start, so I felt like the gift delivered real usefulness.
Duane, SC –
For the price, this was a sensible buy. The syringe had enough active culture to start multiple jars, and I saw clean growth without wasting time on spores. That makes the cost easier to justify for small home grows.
Duane, SC –
For the price, this was a sensible buy. The syringe had enough active culture to start multiple jars, and I saw clean growth without wasting time on spores. That makes the cost easier to justify for small home grows.
Aisling Byrne –
Visible mycelial threads from day one, even suspension, and both jars colonized evenly without odd sectors.
Mireia Solé –
Packaging was tidy, insulated, and blessedly free of drama. The syringe was capped well, nothing leaked, and everything looked clean on arrival. In the world of mailed biology projects, that already feels like a minor miracle.
D.C. –
Picked this up for my brother since he’s the one who actually grows mushrooms, and he specifically mentioned how easy the instructions were to follow. He liked that the storage temperature, inoculation amount, and basic steps were all spelled out plainly instead of assuming prior experience. I can’t speak to the growing side myself, but as a gift buyer, it was nice knowing he wouldn’t have to hunt around for missing details.