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Grow a Garden mutations, explained: how the multiplier actually works
A mutation multiplies what a crop sells for, and it comes from weather, the time of day, or a pet's ability — not from anything you pick yourself.
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A mutation multiplies what a crop sells for, and it comes from weather, the time of day, or a pet's ability — not from anything you pick yourself.
A mutation is a status stamped onto a single crop that multiplies what it sells for — from a couple of times over to, on the rare ones, well over a hundred. You don't equip a mutation or pick it from a menu: weather, the time of day, or a pet's ability decides whether one lands while the plant is growing, and once it does, it stays on that crop for good. This is what actually separates a garden that pays for itself from one that doesn't — the base value of most crops is small, and mutations are where the real money is.
Grow a Garden splits mutations into two groups, and mixing them up is the most common reason a build "should" be worth more than it is.
None of these are something you toggle on. They're tied to conditions that are mostly out of your control, though a few can be nudged.
| Mutation | How it's applied | Roughly how much it multiplies by |
|---|---|---|
| Wet | Rain — around half of rain-affected crops get it | ~2x |
| Chilled | A Frost weather event, or the Polar Bear pet's periodic chance | ~2x |
| Gold | A small random chance on any crop as it grows | ~20x |
| Rainbow | A very small random chance, or the Butterfly pet converting a crop that already has several other mutations | ~50x |
| Shocked | Lightning striking a crop during a Thunderstorm event | ~100x |
Treat the multiplier column as an order of magnitude, not a promise: Grow a Garden gets balance changes on close to a weekly cadence, and guides published only weeks apart already disagree on the exact figures for several mutations — this table reflects what independent write-ups agreed on as of August 2026. If you're chasing an exact number for a specific mutation, expect it to have moved since.
Because the variant slot only ever holds one mutation, chasing Gold once you already have Rainbow is pointless — Rainbow is the stronger of the two and nothing upgrades it further inside that slot. The gains come from the other pool: piling environmental mutations onto a crop that already has a good variant roll. A crop that's Rainbow and Wet and Chilled and Shocked sells for dramatically more than one that's just Rainbow, because each environmental mutation adds its own bonus on top.
Exactly how those environmental bonuses combine mathematically is one of the points where sources genuinely disagree — some describe it as each mutation multiplying the running total, others as each one adding its bonus before a final multiplication by the variant. Since the write-ups don't agree even with each other, the safe takeaway is the practical one: more environmental mutations on one crop is always better, and a crop with several is worth checking before you sell it, rather than assuming you already know its value.
Waiting for the right weather to roll naturally works, but there are ways to shorten the odds:
None of this guarantees a specific mutation on a specific crop — the randomness is the point of the system — but it turns "hope it rains" into something you can actually work toward.