
Rainbow is one of the most exciting mutations in Grow a Garden.
It is super rare and changes the whole crop into a flashing rainbow.
There is also a rainbow in the air and yellow sparkles.
This change gives your crop a huge multiplier, and since it is a Growth mutation, it stacks with other effects like weight.
You can also use the Butterfly pet to force this effect if your crop already has five mutations.
In this guide, you will learn about Rainbow Mutation Multiplier in Grow a Garden, what it does, what it looks like, and how to get.
Rainbow Mutation Multiplier in Grow a Garden

Rainbow
Multiplier: x50
How to Get: 0.1% chance while growing
Description: Changes color all the time, shows yellow sparkles and a rainbow
How to Get Rainbow
There is a 0.1% chance for Rainbow to appear during any growth tick.
You can also use a Butterfly pet if a crop has five or more mutations already.
Conclusion
Rainbow is rare but worth the wait.
Plant lots of seeds and hope for it, or use a Butterfly pet for better odds.
The huge boost makes even small crops sell for big money.
Additional Reading
Wet Mutation Multiplier Guide in Grow a Garden
The List Of Grow A Garden Crop Mutations
Sandy Mutation Multiplier Guide in Grow a Garden
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.