Plants Vs Brainrots Season 1 Update Guide – Corrupted Plants, Birch Forest Biome, and More

Gamepass, Corrupted Plants, and more!

  • Corrupted Plant Pantry: The Plant Pantry can now apply the Corrupted mutation that makes your plants stronger.
  • Birch Forest Biome: Unlock the Birch Forest Biome to fight the new Secret Brainrots.
  • Season Pass: Complete tasks to earn rewards and Season Tokens to spend at the Season Pass Shop.
  • New Plants, Brainrots, Cards, Rebirths, and more.
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Plants Vs Brainrots Season 1 update builds on the Plants Pantry event, expands the card collection, and adds a Season Pass on top of the tons of new Plants and Brainrots. From getting Corrupted Plants to unlocking the new Biome, this guide will tell you how to complete the Plants Vs Brainrots Season 1 Update. So, let’s dive right in!

How to Get Corrupted Plants in Plants Vs Brainrots

Plants Vs Brainrots Corrupted Plants
Screenshot by Pro Game Guides

The Corrupted mutation is a Story Mode special mutation that increases the HP of your plants by 10x. So, if you have a plant with 100 HP, getting the Corruption mutation on it will increase its HP to 1000. This can be extremely useful in clearing the story missions, as it can speed up your progress.

To get the Corrupted mutation, here’s what you have to do:

  • Pick up the plant that you want to get the Corrupted mutation on using the shovel.
  • Go to the Central Island.
  • Give the plant to the corrupted chef standing in the Corrupted Plant Pantry area.
  • Wait for the timer to hit zero. It can take anywhere from 5 to 15 minutes to apply the mutation. Higher-rarity plants will take longer. 

Once the plant is ready, it will be automatically added to your inventory. You can place it down in your garden without having to go back and collect it.

How to Earn Season Pass XP in Plants Vs Brainrots

Plants Vs Brainrots introduces the Season Pass mechanic in the Season 1 update. There is a Free Tier and a Premium Tier that costs 299 Robux. The Season Pass has multiple tiers, each offering better rewards than the last. You can claim these rewards by progressing through the Season Pass. For that, you have to earn Season Pass XP by completing certain quests. Here’s how to do that:

  • In the Lobby, click on the Season Pass button located above the Rebirth button.
  • Click on the Quests button to see all available quests. 
  • For Free Tier players, there are three quests available at any given time. These are of Easy, Medium, and Hard difficulty. The quests reset every 12 hours. If you’ve completed the quests, you’ll have to wait for the timer to hit zero to get new ones.
  • Complete these quests to earn Season Pass XP.

As you progress through the Season Pass, you’ll get rewards like Season Tokens, Brainrots, different Gear items, Crates, EXP, and a lot more. 

You can redeem the Season Tokens at the Season Shop to get items like Premium Water Bucket, Witch Potion, Expansion Card Pack, and more. The Season Shop has limited stock and restocks every hour, so make sure you get the items you need before they disappear or someone else purchases them.

Plants Vs Brainrots Game Pass
Screenshot by Pro Game Guides

How to Unlock the Birch Forest Biome in Plants Vs Brainrots

Plants Vs Brainrots Season 1 update expanded the Brainrot Invasions Story Mode with the Birch Forest Biome. It’s the fifth biome to be added to Plants Vs Brainrots, and it brings 25 new Story Missions and more Secret Brainrots to collect.

However, you first have to unlock the Birch Forest Biome and defeat the various bosses to get those brainrots. For that, you must clear all 25 Story Missions of the Cherry Grove Biome. Once you do that, you will automatically unlock the Birch Forest Biome and will be able to collect brainrots like Cocotank, Conerio, and more.

See the table below for a quick overview of the Birch Forest Biome:

Number of Story MissionsAll BossesAll Rewards
25 - Wave 76 to 100.W and L
Nobini
Jandel
Bongo
Shovellini
Harmello
Tools
Moppo
Hotspot V1 & V2
Caratrios
Dr Flalarino
Tung Tung Tung Sahur
Cocotank
Conerio
Crazylone Pizaione
Garamararam
Carnivorous Plant
La Tomatoro
Blueberinni Octopussini
Los Sekolitos
Mr Carrot
Money
Various Potions
EXP Items
Gear Items

Plants Vs Brainrots FAQs

How long will Plants Vs Brainrots Season 1 last?

Season 1 of the Plants Vs Brainrots Season Pass will last for 20 Days. Until then, players can get new rewards every day and also repeat the rewards after completing all tiers.

Does the Corrupted mutation increase the Plants’ damage?

No, the Corrupted mutation in Plants Vs Brainrots only increases the HP of your plants by 10x, which only takes effect in the Story Mode. 

Will the Corrupted mutation remove other mutations from my Plants?

Yes, if you decide to get the Corrupted mutation on a plant, all existing mutations on that plant will be removed. So, make sure not to submit plants that have better mutations already. 

While you're here, make sure you redeem all the latest Plants Vs Brainrots Codes. Also, the developers will be hosting Admin Abuse for three days straight. Check out the Plants Vs Brainrots Admin Abuse Event Times & Countdown to make sure you don't miss the rarest brainrots, plants, and more.

Get Roblox codes and news as soon as we add it by following our PGG Roblox Twitter account!

About the Author

Shah is a Roblox specialist with years of experience covering the platform’s biggest games, updates, and code drops for top-tier gaming sites. Formerly an accountant, he now applies the same precision to analyzing mechanics, meta shifts, and game trends across the Roblox universe. He’s especially known for breaking down Blox Fruits treasure hunts and mastering the grind in Grow a Garden.
Find Shah Zaib On: Twitter
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