Out-Grow

Growing the future, one spore at a time 🍄 Premium substrates, cultures & supplies. Low prices, top quality. We love mushrooms!

[Out-Grow @Out_Grow]

@Outgrow 🎉 We have a winner! Congratulations @oporna332 — you've been selected as our Twitter/X Giveaway winner! Thank you to everyone who entered. Stay tuned for more giveaways from Out-Grow! 🍄

[Out-Grow @Out_Grow]

🍄 GIVEAWAY TIME!

We're giving away $80+ in mushroom liquid cultures!

🎁 Winner gets a Gourmet 5-Pack + their choice of an Oyster OR Medicinal 5-Pack

To enter:
1️⃣ FOLLOW @OutGrow
2️⃣ LIKE this post
3️⃣ REPOST this
4️⃣ TAG 2 friends in the replies

Giveaway closes April 3rd. Winner announced April 4th. Must be following to win! 🍄

#Giveaway #Mushrooms #OutGrow #MushroomGrowing

[Out-Grow @Out_Grow]

Fresh batch of Mini All-In-One Mushroom Grow Bags ready to go!

These are freshly sterilized and ready for inoculation. Every run takes time to prepare correctly, but the result is clean, reliable substrate you can trust.

This batch will probably be gone in a couple of days… then it’s time to fire up the sterilizers and make more.

https://t.co/w8RzfluY0S

#mushroomcultivation #mushroomgrowkit #mushroomgrowbag

[Out-Grow @Out_Grow]

Brown Oyster Mushroom Grow Kits Are Back!

Our Brown Oyster Mushroom Grow Kits are finally back in stock at Out-Grow! These are the largest kits on the market at over 7 lbs, giving you a massive fruiting block and plenty of fresh, vibrant brown oyster mushrooms to harvest at home.

Easy to grow, fast to fruit, and absolutely beautiful when they bloom. If you’ve been waiting for them to return, now’s the time to grab one.

https://t.co/effAiNts0u

#oystermushrooms #growingmushrooms #mushroomgrowkit

[Out-Grow @Out_Grow]

New on the Out-Grow website!

You can now purchase our mushroom cultures on MEA agar culture plates. Perfect for transfers, expansion, and maintaining your favorite strains.

All plates are made to order and ship within 1–2 weeks.

Explore the new collection: https://t.co/XRVIkuqwgP

[Out-Grow @Out_Grow]

Every mushroom species grows a little differently

Different colors, different growth patterns, different personalities in the culture jar.

This is an order of liquid cultures currently in the lab at Out-Grow. Each one contains living mycelium ready to expand onto grain, agar, or substrate.

If you’ve never worked with liquid culture before, it’s one of the fastest and easiest ways to start growing mushrooms.

https://t.co/bHb5tSrJrB

#liquidculture #growingmushrooms #mushroomculture #mushroomcultivation

[Out-Grow @Out_Grow]

Fresh sterilized rye berries ready to ship 🍄

Just finished sterilizing this batch this morning. These will be heading out tomorrow to customers who already ordered.

Rye berries are one of my favorite grains to work with.
Just inoculate with 2–4cc of liquid culture and let the mycelium do the rest.

Thanks for keeping the lab busy everyone.

#mushroomcultivation #mushroomspawn #growingmushrooms

https://t.co/3EqIEYvfVB

[Out-Grow @Out_Grow]

King Oyster Mushroom Spawn is finally back in stock.

This one has been out for months but we just finished a fresh batch of King Oyster Mushroom Spawn (Pleurotus eryngii). Each bag now contains 6 lbs of fully colonized grain spawn ready to inoculate your substrate.

If you have been waiting for King Oyster Mushroom Spawn to return, it is available again now.

https://t.co/sSxK0uVwDr

#kingoystermushroom #growingmushrooms #mushroomspawn

[Out-Grow @Out_Grow]

Pink Oyster Mushroom Grow Kits Are Back!

Our Pink Oyster Mushroom Grow Kits are finally back in stock at Out-Grow! These are the largest kits on the market at over 7 lbs, giving you a massive fruiting block and plenty of fresh, vibrant pink oyster mushrooms to harvest at home.

Easy to grow, fast to fruit, and absolutely beautiful when they bloom. If you’ve been waiting for them to return, now’s the time to grab one.

📷 https://t.co/WRVvDowjKz

#pinkoystermushrooms #mushroomgrowkit #mushroomcultivation

[Out-Grow @Out_Grow]

Five gourmet species in one pack. 🍄

Our Gourmet Mushroom Cultures 5-Pack includes Shiitake, White Enoki, Portobello, Chestnut, and King Oyster.

Each as a 10–12cc liquid culture syringe containing live mycelium in sterile nutrient broth. Perfect for inoculating sterilized grain, agar plates, or your preferred substrates.

A great way to expand your culture library and start multiple gourmet grows at once.

https://t.co/hpdpvAiVnu

#mycology #mushroomcultivation #liquidculture #gourmetmushrooms #outgrow

[Out-Grow @Out_Grow]

All In One Grow Bags make growing easier. 🍄

These bags eliminate the need to transfer substrates during cultivation. Each bag contains three layers of substrate designed to support the full nutrient cycle required for colonization and fruiting.

Just inoculate and let it grow.

👉 https://t.co/V1wPBfS6Cs

#mycology #growingmushrooms #fungi #mushroomcultivation

[Out-Grow @Out_Grow]

White Milo a great grain for mushroom cultivation 🍄

Milo tends to colonize faster than other grains and its smaller size means more inoculation points when you transfer to bulk substrate.

That translates to faster, more even colonization in your final grow.

A solid alternative to rye worth trying if you haven't yet.

👉 https://t.co/MWWt4TIcUQ

#mycology #mushroomspawn #grainspawn #outgrow

[Out-Grow @Out_Grow]

We Ship Orders On Saturdays 📦🍄

Out-Grow ships 6 days a week to get your supplies to you as fast as possible.

When it comes to mycology supplies, freshness and fast shipping genuinely matters, and we take that seriously.

👉 https://t.co/8wJmcJI09R

#mycology #fungi #mushroomcultivation

[Out-Grow @Out_Grow]

Six Pounds of Rye Can Do a Lot. 🍄

Once fully colonized, 6 lbs of rye berry grain can inoculate up to 30 lbs of bulk substrate.

That’s serious expansion power from one 6-pack of rye.

Our sterilized rye berry bags arrive fully hydrated and sterilized, ready for inoculation. We produce over 250 lbs of rye every single day, so you're always getting fresh stock.

https://t.co/rjmlxozu48

[Out-Grow @Out_Grow]

You won't find these cultures anywhere else

Eight plates, eight completely different species — Neurospora Intermedia, Favolus Tenuiculus, Mycena Myrifica, Heimiomyces Tenuipes and more.

Every one grows differently, looks different, behaves differently.

We've spent years building one of the most diverse culture libraries you'll find anywhere, over 200 species and strains. If you're looking for something beyond the usual Oyster and Shiitake, this is the place.

Browse our full culture collection: https://t.co/D6ksTGrAk8

[Out-Grow @Out_Grow]

What is the Abalone Mushroom?

Hey everyone 🍄

Ever hear of the Abalone Mushroom (Pleurotus cystidiosus)?

Choice edible, relatively easy to cultivate, and one of the most interesting species in the oyster mushroom family.

Just published a full write up on it.

https://t.co/pzCw2XF9yI

[Out-Grow @Out_Grow]

A peek inside our incubation chamber 🍄

Top shelf is liquid cultures in progress, bottom shelf is grain spawn bags colonizing.

Every order that leaves our facility starts right here.

If you've ever wondered what goes on behind the scenes at Out-Grow, this is it, 15 years of doing this same process, just at a bigger scale than when we started.

👉 https://t.co/8wJmcJIxZp

[Out-Grow @Out_Grow]

Sunday night 🍄

There's something almost magical about mycelium, a living network quietly doing its thing, invisible until it isn't.

Hope everyone had a great weekend and your grows are looking strong this week.

Mike — Out-Grow

https://t.co/JilSQDu0Z0

[Out-Grow @Out_Grow]

Brown Oyster mycelium colonizing in the incubator 🍄

This is what healthy grain colonization looks like up close. Thick, white mycelium spreading evenly through the bag.

Getting these right before they're ready to ship is the part of the job we take seriously.

If you want to grow your own Brown Oyster mushrooms, we carry both the liquid culture and sterile grain bags separately so you can build your own setup.

🔗 Brown Oyster Culture: https://t.co/N4TxILvNsT

🔗 Grain Bags: https://t.co/WYSz5nirsi

[Out-Grow @Out_Grow]

Not all mushrooms grow on the same substrate 🍄

Different species have different needs. Oyster mushrooms thrive on straw, while species like Shiitake prefer wood-based substrates, and dung-loving species need manure-based blends.

We carry all three, fully prepared, sterilized or pasteurized, and ready to use. No mixing, no guesswork.

Browse our substrate collection: 👉 https://t.co/kG3BRdaRca