Home > Gaming Guides > How to Get and Use Growshrooms in Once Human

How to Get and Use Growshrooms in Once Human

Published Date :

As the name suggests, Growshrooms in Once Human are deviants that help you grow plants. It’s a large mushroom that assists in growing crops faster, leading to more options of food and crafting materials for you. So, if you’d like to know how to get this valuable asset to help with food production and self-sufficiency in the post-apocalyptic world, here’s how you can unlock this creature.

How to Get Growshrooms in Once Human

Unlike other deviants, you can’t find a Growshroom in a specific location in the wild. Instead, you need to harvest mushrooms to have a chance of getting this deviant. It’s random so you might have to keep doing this multiple times to get one.

sunbury middle school mushroom farm

So, explore the world for normal mushrooms – the best spot is in the Sunbury middle school caves area and when you harvest one, you might just get this deviant if you’re lucky. Aside from this location, clusters grow in forest areas across the map. Simply approach one, look at it and press the F key on your keyboard to harvest.

harvesting mushroom clusters once human
image credit: KilroyPlays

If you’re not keen on heading out for this deviant each time, you can also grow mushrooms in your farm and you still have a random chance of obtaining a Growshroom. To grow crops indoors, you will need Grow Lights, Automatic irrigation and fertilizer, so be sure to check our guides to know how to get them for better yield.

faster germination with growshrooms
image credit: AyinMaiden

How to Grow a Growshroom at your Base

  • To grow a Growshroom deviant, you need Mushroom seeds which can be obtained by harvesting mushrooms because when you do that, there’s a chance you also get seeds from the loot.
  • Plant them in Loamy Soil within a Planter box at your base.
  • Then, you need water to help them grow – choose Boiled Water and wait for the germination. And once the crop is ready, harvest it.
deviant for automatic planting harvesting
image credit: KilroyPlays

How to Use the Growshroom Deviant

Having a Growshroom can help with automatic planting and harvesting with faster crop growth, so that you can focus on other aspects of the gameplay while also having a steady supply of food.

growshroom thriving growth

It needs Green Light, High temperature and Electricity (5W) to recover Deviant Power and Mood faster. The higher the Deviant Energy rating, the faster the growth. When you get it to work, press G to control it or H to interact.

And that’s everything you need to do to get and use a Growshroom in Once Human. To get more deviants like Pup Buddy, Buzzy Bee, Lethal Rabbit, Fetch-a-Lot Bunny, and the Digby Boy, we’ve got guides that can help you get straight to them easily.

  • Anime Origins Codes (August 2026)

    Anime Origins Codes (August 2026)

    Published Date :

    Anime Origins is a tower defense experience where building the right team matters just as much as having powerful units. You’ll collect anime-inspired characters, place them along enemy routes, upgrade them during battles, and gradually move into harder modes such as Infinite and raids. Trait Rerolls and Gems can help you improve your roster, making… Read More

  • Wonderland Codes (August 2026)

    Wonderland Codes (August 2026)

    Published Date :

    Wonderland turns childhood nostalgia into something much darker. Every run throws you into a shifting horror world where corridors, environments, and encounters can change, making it difficult to know what is waiting around the next corner. You’ll need to navigate the maze, solve puzzles, and survive whatever the game sends your way. A few free… Read More

  • Greedy Growers Codes (August 2026)

    Greedy Growers Codes (August 2026)

    Published Date :

    Greedy Growers puts a spin on the usual Roblox farming formula – you buy seeds from the river, plant them on your plot, and wait for them to grow, but there’s one big problem: lightning can destroy your progress if you get too greedy. Timing your harvest is just as important as choosing what to… Read More

  • Anime Capture Codes (August 2026)

    Anime Capture Codes (August 2026)

    Published Date :

    If going on an anime adventure, defeating enemies, building a team and completing quests sounds like something you’d like, then this game is for you! While you’re at it, these Anime Capture codes can help with that grind by giving you free F2P Tickets, Potions, and other useful rewards. Don’t miss out because they can… Read More