Once Human Growshroom: Introduction

The Once Human Growshroom Guide begins by introducing one of the most fascinating Deviations you’ll encounter: the Once Human Growshroom. Imagine a towering mushroom roughly 1.5 meters tall and weighing around 80 kilograms, but with fleshy, almost limb-like extensions that give it a more animated and lively appearance than your typical fungus. This isn’t just a strange plant—it’s a highly intelligent deviant capable of communication. Unlike other static entities, the Growshroom interacts with its environment and the player, making it more than just a gardening tool—it’s a unique companion in your personal territory.

As a Territory Deviation, the Growshroom’s influence is limited to your own designated space, so it’s important to keep this in mind as you plan your gardening layout. Within this personal zone, the Growshroom’s main function is to automate tedious gardening tasks. Whether it’s planting seeds, tending to them as they grow, or harvesting mature crops, the Growshroom handles it all efficiently. This automation allows you to focus on other aspects of the game without worrying about the repetitive chores of farming. Another standout feature is its ability to accelerate crop growth. The speed at which your plants mature directly relates to the Growshroom’s Deviant Energy level—the higher this rating, the faster your harvest will be ready.
| Feature | Description |
| Height & Weight | ~1.5 meters tall, ~80 kilograms |
| Appearance | Mushroom-like with fleshy limbs |
| Communication | Intelligent and able to communicate |
| Territory Use | Can only function within personal territory |
| Primary Functions | Automates planting, harvesting, and speeds crop growth |
| Activity Level | More active when engaged in gardening tasks |
What truly sets the Growshroom apart—and what this Once Human Growshroom Guide emphasizes—is its interactive nature. The Growshroom becomes noticeably more active and communicative when you engage with it during planting and nurturing activities. This behavior isn’t just for show; the more attention you give it, the more efficient and responsive it becomes. It’s almost as if the Growshroom thrives on collaboration, rewarding players who invest time and care into their gardens with faster growth and higher yields. This dynamic creates a satisfying feedback loop, encouraging players to treat their gardening as a meaningful, interactive experience rather than a mundane task.

Finally, the Once Human Growshroom’s presence adds a layer of charm and personality to your territory. Far from being a cold machine, this fungal deviant shows curiosity and enthusiasm for its role, making your garden feel alive. Whether you’re a seasoned gardener or new to the game, the Once Human Growshroom Guide will ensure you understand how to maximize this deviant’s potential. From setting up your territory to maintaining the Growshroom’s energy and interaction, the guide helps transform your garden into a thriving, living oasis that grows alongside you.
Once Human Growshroom: How to Obtain a Growshroom

The Once Human Growshroom Guide shows that obtaining a Growshroom is both a test of patience and a stroke of good fortune. The primary method is harvesting wild mushrooms scattered throughout the Nalcott map. These mushrooms aren’t just for show—they carry a chance, albeit random, of giving you a Growshroom. If you prefer a more controlled approach, you can also plant mushrooms in Loamy Soil or Planter Boxes within your own territory. This allows you to cultivate your chances right at home, turning your personal space into a small mushroom farm.
The Once Human Growshroom Guide recommends focusing your mushroom farming efforts in key locations where mushrooms are plentiful. One of the best spots is northwest of Meyer’s Market along the railroad tracks. Here, you can collect roughly a dozen mushrooms per visit, making it an efficient farming run. If your luck doesn’t strike the first time, use a teleporter to leave, switch game worlds, and return to reset the mushroom spawns. Repeating this cycle improves your odds without wasting too much time. Other great farming locations include the cave west of the Teleportation Tower near Sunbury Middle School, which has a vast network of mushrooms and easy access via teleportation.
| Method | Details |
| Harvesting Wild Mushrooms | Random chance, found across Nalcott map |
| Planting Mushrooms | Use Loamy Soil or Planter Boxes within your territory |
| Recommended Farming Spots | Meyer’s Market (railroad), Sunbury Middle School Cave, High Banks, Wish Land Park Bear Cave |
| Update 1.4.3 Additions | Mutation chance from planting, one-time purchase at Meyer’s Market Trader |
| Hidden Reset Window | 4-hour cooldown after finding one Growshroom variation |
With the release of update 1.4.3, the Once Human Growshroom Guide highlights some new ways to get your hands on a Growshroom. Now, you might encounter a “Chance of Mutation” when planting mushrooms, giving your crop an unexpected twist. Alternatively, you can purchase a Once Human Growshroom directly from Meyer’s Market Trader, but this option is limited to one purchase per character at Deviation level 1-1, making it a one-time shortcut rather than a repeatable method. This addition gives players a fresh way to obtain the Growshroom, whether they want to gamble on mutations or invest in the market.
Finally, the community has uncovered a hidden mechanic worth noting: a four-hour reset window that limits how many Growshrooms you can find within a short period. This means after acquiring a Growshroom, the game may temporarily prevent you from finding another variation right away. The Once Human Growshroom Guide advises taking a break once you get one, then coming back later to avoid wasting time farming when the chance is essentially on cooldown. This insight helps you farm smarter, not harder, ensuring your efforts lead to better results over time.
Once Human Growshroom: How the Growshroom Works

The Once Human Growshroom Guide shows that the Growshroom is more than just a strange fungal creature—it’s a reliable gardening partner designed to lighten your workload and boost your crop yields. To get started, you must place the Growshroom inside an Isolated Securement Unit within your territory. This specialized container acts like a cozy home and charging station, keeping the Growshroom secure and ready for action. Without this setup, the Growshroom won’t activate, so making sure it’s properly housed is the essential first step to unleashing its gardening magic.
Once securely placed, the Once Human Growshroom’s true abilities begin to shine through its automated gardening tasks. If you provide seeds, it will automatically plant them on any vacant farm plots, taking away the repetitive chore of manual planting. But the Growshroom doesn’t stop at planting. It actively tends to your crops by settling down near randomly selected plants, accelerating their growth. The speed at which it boosts growth depends on its Deviant Energy rating—the higher the rating, the faster your plants mature. This smart nurturing helps your garden thrive with less time and effort on your part.
| Feature | Description |
| Placement Requirement | Must be inside an Isolated Securement Unit in your territory |
| Gardening Automation | Plants seeds, accelerates growth, and harvests mature crops |
| Growth Boost | Depends on Deviant Energy level; higher energy means faster crops |
| Deviant Power Threshold | Activates at 30 power; returns to recharge when low |
| Seed Feeding Interaction | Via containment unit selection box in the upper right of screen |
The Once Human Growshroom Guide also points out the importance of the Growshroom’s energy system. It needs Deviant Power to operate and only begins working when its power level hits 30 or more. If its energy runs low, it will retreat back to its containment unit to recharge, preventing burnout and ensuring it can keep up with your gardening demands over time. This means keeping an eye on its power status is key to maintaining uninterrupted gardening automation. Feeding seeds to the Growshroom is simple: just click its containment unit and use the selection box in the upper right corner of the screen to supply seeds. This straightforward interaction keeps your fungal helper fueled and busy without any fuss.
Overall, the Once Human Growshroom Guide makes it clear that the Once Human Growshroom is a valuable addition to any player’s territory who loves gardening but wants to save time. Its combination of planting, tending, and harvesting, powered by a clever energy system, turns the once tedious farming routine into an enjoyable and efficient experience. With your Growshroom in place and properly managed, you can look forward to a lush garden that practically takes care of itself.
Once Human Growshroom: Optimizing Growshroom Performance

The Once Human Growshroom Guide makes it clear that optimizing your Growshroom’s performance can turn a good garden helper into an exceptional one. One of the easiest ways to speed up its energy restoration is by placing the containment unit near green lights. These lights seem to boost the Growshroom’s power recharge, helping it spend more time tending your crops and less time napping. Plus, thanks to update 1.4.3, the effective lighting range has improved—you don’t have to be right next to the light source anymore. The Growshroom can now absorb energy from green lights even if they’re a couple of floors above or below, making placement more flexible.
| Optimization Method | Effect and Notes |
| Green Light Placement | Speeds up energy restoration; effective in 2-story range |
| High Temperature | Warm areas (e.g., near furnace) boost recharge rate |
| Electricity Supply | 5 watts per Growshroom needed; minimal performance gains |
Temperature also plays a surprising role in performance. Keeping the Once Human Growshroom’s containment area warm, like near a furnace or heat source, helps it recharge faster. The warmth seems to energize this fungal friend, so think of it as providing a cozy environment for your gardening buddy. While it might sound a little odd, maintaining a warm space inside your territory really can boost the Growshroom’s efficiency and keep it working harder for longer.
Electricity is another factor mentioned in the Once Human Growshroom Guide, but here’s a tip: powering your Growshroom’s unit with electricity requires about 5 watts per unit to reach max efficiency. However, some players report that feeding electricity to deviations like the Growshroom doesn’t significantly improve performance and could be a waste of power that might be better used elsewhere. So, while it’s an option, it’s not necessarily the best use of your resources.
Once Human Growshroom: Growshroom Variants

The Once Human Growshroom Guide highlights that while the basic Growshroom is already a reliable and efficient gardening companion, the game offers two intriguing variants that bring additional personality and unique perks to your farming setup. These Growshroom variants retain all the core gardening functions of the original—automatic seed planting, crop growth acceleration, and harvesting—but each adds its own distinctive trait that can influence your gardening strategy. Exploring these variants can help players customize their approach and get even more out of their fungal helpers.

The first variant, known as the Growshroom – Extra Large, truly stands out with its noticeably bigger size and more robust appearance. Beyond its impressive look, this Growshroom variant carries the Optimism trait, which significantly boosts its maximum mood by 40%. This increased mood isn’t just cosmetic; it directly impacts how effectively the Growshroom performs its tasks. A happier Growshroom tends to work faster and with greater precision, making your gardening process smoother and more productive. Imagine a cheerful, oversized mushroom buddy that’s not only hard to miss but also genuinely motivated to help your garden thrive.
| Variant | Unique Trait | Effect |
| Basic Growshroom | None | Standard gardening automation |
| Extra Large Growshroom | Optimism | Max Mood +40%, boosts efficiency |
| Green Touch Growshroom | Toxicologist | 25% chance to not consume energy in Pollution Zones |
On the other hand, the Growshroom – Green Touch variant offers a specialized advantage for players who operate in the more hazardous parts of the game world, such as Pollution Zones. Sporting the Toxicologist trait, this Growshroom has a 25% chance to avoid consuming energy when working in these toxic environments, effectively extending its operational time without needing to recharge. This energy efficiency can make a big difference when managing crops in challenging zones where resources are tight. However, a note of caution from the community is that the “Green Touch” Growshroom has a reported bug—players sometimes find that it doesn’t collect acid as intended, which may impact its usefulness depending on how you plan to use it.
The Once Human Growshroom Guide encourages players to try out these variants to see which fits best with their gardening needs and style. The choice between the optimistic, hard-working Extra Large and the energy-savvy Green Touch adds a strategic layer to farming, turning what might seem like a simple helper into a customizable tool. Whether you want a bubbly giant to brighten your farm or a savvy survivor in polluted areas, these Growshroom variants expand your gardening options and make managing your territory even more engaging and rewarding.
Once Human Growshroom: Tips, Considerations, and Known Issues

The Once Human Growshroom Guide points out some important tips and considerations to keep in mind when using Growshrooms for your farming needs. One key limitation is that each Growshroom only buffs the growth of one farm plot at a time. This means if you want to speed up a large farm, you’ll need multiple Growshrooms spread out across your territory. Keep in mind that their AI tends to favor plants closest to their containment unit, often ignoring others farther away. This can cause uneven crop growth and force you to check your fields regularly to keep your harvest cycles smooth.

Growshrooms also interact in quirky ways with decorative plants and other Deviants around your base. They’ll happily harvest flowers and decorative crops, which might be frustrating if you use these plants to boost the mood or efficiency of other Deviants. A handy workaround is to place mood-boosting plants in spots where Growshrooms can’t reach—like areas without sun or water, or hidden behind sprinklers—so your base keeps looking good without losing those plants to hungry Growshrooms. The Once Human Growshroom Guide suggests using decorative pot plants or vines for purely aesthetic purposes, which won’t get harvested.

Energy and resource management is another factor to consider. Growshrooms need about 5 watts of power each to run at full efficiency, but some players find plugging them into your electrical grid to be a power drain better spent on pumps or refineries. Also, they can’t use fertilizers, so if you want to experiment with mutated crops, you’ll still need to plant those manually. Seed management requires your attention too—Growshrooms can’t recycle seeds from harvested crops, and if overloaded with seeds, they might glitch or stop working properly.

Finally, the Once Human Growshroom Guide warns that while Growshrooms are great for casual or AFK farming, especially for bulk growing simple crops like mushrooms or wheat, they’re less precise than manual farming for specialized crops or mutations. They also have some bugs, like occasional failure to plant or harvest even when powered, often due to base rendering glitches. For large farms, micromanaging Growshrooms can get tedious since directing them to specific plots isn’t practical. Knowing these tips helps you integrate Growshrooms smartly into your territory, balancing convenience and efficiency without frustration.
Once Human
Play Once Human on PC and mobile for free and join your friends in a post-apocalyptic world. Fight monsters, uncover secrets, and build your own territory in this multiplayer game. Engage in co-op battles, scavenge for resources, and unlock powerful abilities as you reclaim Earth from horrifying creatures.
Frequently Asked Questions (FAQ)
❓What is the primary function of the Growshroom in Once Human?
🟢The Growshroom automates planting, speeding crop growth, and harvesting inside your territory.
❓Where do I place the Growshroom to activate it?
🟢It must be placed inside an Isolated Securement Unit within your territory to work properly.
❓How can I improve the Growshroom’s performance?
🟢Place its containment near green lights, maintain higher temperatures, and provide at least 5 watts of electricity.
❓What are the differences between Growshroom variants?
🟢Extra Large boosts max mood by 40%, while Green Touch saves energy in Pollution Zones with a 25% chance not to consume power.
❓Does the Growshroom work continuously when offline?
🟢It only functions when your base is loaded and you are logged in; otherwise, it pauses its automation.
Search
Account
Discord