
The Rainbow mutation is one of the coolest upgrades you can give a pet in Grow a Garden.
It does not change the pet’s look much, it just adds a shimmer of rainbow particles.
But it makes your pet’s passive effect much stronger.
In this guide, you will learn all about Rainbow Pet Mutation in Grow a Garden, from it’s Wiki to how to get, and what makes it special in the game.
Grow a Garden Rainbow Pet Mutation Wiki

Rainbow
Effect:Provides a bigger increase to the pet’s passive!
Boost Type:Passive Boost
Boost Amount:+20%
Chance:3.22%
How to Get the Rainbow Mutation in Grow a Garden
To get the Rainbow mutation, your pet needs to be at least level 50.
You can use the Pet Mutation machine in the game to try your luck.
The chance of getting Rainbow is only 3.22%, so it might take a few tries.
But if you see rainbow sparkles around your pet, that means you got it.
Related: Rainbow Mutation Multiplier Guide in Grow a Garden
What the Rainbow Mutation Does in Roblox’s Grow a Garden
The Rainbow mutation increases your pet’s passive boost by 20%.
That means if your pet helps with things like crop value, mutation rate, or fruit size, those boosts get stronger.
It does not add new abilities; just powers up the one your pet already has.
Conclusion
The Rainbow mutation is great for players who already use high-level pets.
It makes those pets even better without needing to do anything else.
If you are looking for a reliable way to grow stronger fruit, this is one of the best mutations to aim for.
Additional Reading
Golden Pet Mutation Wiki in Grow a Garden
Shocked Pet Mutation in Grow a Garden (Wiki & How to Get)
Tiny Pet Mutation in Grow a Garden (How to Get and Wiki)
Brianna is based in Minnesota in the US at the moment, and has been writing since 2017. She is currently a 3rd Year med student at the time of writing this.