How to get it
Appears in Gear Shop restocks or from events.
Stats
- Date Added
- September 20th, 2025
- Effects
- Makes a plant Rainbow for 2 hours
- Is Obtainable
- Yes
- Limited
- No
Overview
The Rainbow Fertilizer is a prismatic gear that was added in the second half of the Fall Market Event. It can be obtained from the Forever Pack.
Appearance
The Rainbow Fertilizer has a box-like shape, featuring a bright green circle with three upward-pointing arrows on the front. It also has a black handle on one side, resembling a small fertilizer dispenser. When used on a plant, a rainbow aura appears around the target plant.
Usage
Using the Rainbow Fertilizer on a plant applies the Rainbow variant for 2 hours. The Rainbow variant gives a higher chance for the rainbow mutation on produce and gives a 50x multiplier to the speed of produce growth. It cannot be stacked with the other fertilizers, neither the Silver Fertilizer nor the Gold Fertilizer.
Trivia
The Rainbow Fertilizer is the third fertilizer in the game. The first being Silver Fertilizer and the second being Gold Fertilizer.






