Rainbow
Overview
The strongest evergreen (non-event) mutation and the reason Unicorn is the most chased pet — a Unicorn doubles your Rainbow roll chance. A Rainbow crop at high weight is a top-tier sale.
Rainbow is a Growth mutation worth a ×30 multiplier on a crop's weight-scaled value. In GAG2 a crop only ever holds one mutation, so Rainbow either is or is not on the card — it never combines with another multiplier.
How to get it
Source: Random roll, Rainbow Seed, or Rainbow weather, which triggers during the Rainbow weather event. Chance: ~3% natural.
- Gold and Rainbow can roll naturally, from special seeds, or be boosted by pets.
- A Golden Dragonfly doubles Gold odds; a Unicorn doubles Rainbow odds.
- Farm cheap, fast, multi-harvest crops (like Bamboo) to fish for the roll efficiently.
What it's worth
Example on a 5 kg Moon Bloom: a normal crop sells for about 225K, while a Rainbow one sells for roughly 6.75M — a 30× jump. Put your own crop and weight into the calculator to see exact numbers.
Rainbow in depth
Rainbow is the strongest evergreen mutation in the game at ×30, the highest multiplier you can chase without depending on a limited event. That permanence is what makes it so valuable: while Ignited, Bloodlit and Eclipsed only appear during their event windows, Rainbow can roll any day at roughly a 3% natural rate, and a Unicorn pet doubles that chance. It is the single biggest reason Unicorn is the most sought-after income pet in GAG2, and a high-weight Rainbow crop is a genuine top-tier sale.
Treat Rainbow as your primary long-term target. Pair it with the highest-base multi-harvest crops you own, with Moon Bloom and its large weight cap the classic choice, so the ×30 compounds across every harvest and every kilogram. Run a Unicorn to fish for the roll, keep the plot under strong sprinklers for weight, and never leave a ripe Rainbow crop on an open path at night. Feed your exact crop and weight into the calculator; a Rainbow Moon Bloom at cap is often the biggest number you will see outside an event.