Rainbow + Wet/Chilled/Choc/Moonlit

This is the cleanest, most beginner-friendly rainbow combination in the list: the rainbow growth mutation plus exactly one basic environmental layer drawn from Wet, Chilled, Choc or Moonlit, for a tidy 100x sell multiplier. The slash in the name means you only need any single one of those four to qualify, not all of them.

The math here is the whole lesson in how Grow a Garden stacking works. A lone basic environmental mutation is worth very little on its own, but rainbow is a powerful growth multiplier that scales whatever sits beneath it, so even one cheap weather layer is lifted to a respectable 100x. Wet triggers from rain, Chilled from frost, Moonlit from the night cycle, and Choc from a chocolate sprinkler — all conditions a new player runs into within their first sessions.

Because the requirements are so forgiving, this is the ideal entry point for learning to bank rainbow crops. Once you can reliably hit 100x, you progress to adding Shocked from thunderstorms for the 5,050x tier. It is not a high-end target, but it is the dependable building block every bigger stack starts from.