Rainbow + Frozen

Rainbow + Frozen is not a single mutation but a stacked combo, and its headline number tells the whole story: a 500x sell multiplier when both effects sit on the same crop at once. This is exactly the kind of layering that the Grow a Garden economy rewards, where multiplicative mutations compound rather than replace each other.

The mechanic behind it is the marriage of the two best-known modifiers. The Rainbow (Prismatic) mutation is the top-tier color upgrade, far rarer and stronger than its Gold counterpart, and Frozen comes from cold-weather exposure such as a Frost or freeze event. Land both on one fruit and their multipliers multiply together to reach that 500x ceiling, which is why chasing the combo is a deliberate goal rather than a happy accident.

Is it worth pursuing? Emphatically yes for endgame selling, but it demands setup: you need a high-base crop, the rare Rainbow roll, and a freezing weather window lining up on the same harvest. The row lists no separate condition or rarity because the value is the stack. Plan your plantings around catching a cold event while holding Rainbow-quality produce, and a single fruit can outsell an entire ordinary plot.