mutations.ts classifies Corrosive as weather-category, multiplier 29, stackable true, with acid-rain etching from toxic storm and swamp weather. Toxic Mist is the closest catalogued swamp-adjacent weather row (Toxic, Corrupted, Overgrown). Stay planted through the hazard window so the etch icon can land before harvest; do not invent a separate Acid Rain weather id the weather table never publishes.
Corrosive Mutation Grow a Garden
Acid etching is a weather-lane hazard tag, not a growth rewrite — Corrosive sits at 29× in the environmental bracket when toxic storm and swamp flags leave visible pitting on the harvest UI.
29×weatherStackable
How to trigger
Stacking rules
Corrosive is environmental, not growth. Solo: envBracket = 1 + (29 − 1) = 29. It has no CONFLICT_PAIRS entry, so it may share the env sum with Toxic (14×), Infected (18×), or Radioactive (72×) when those tags also appear. Growth remains exclusive — Golden or Rainbow still compete only with other growth mutations. Never multiply Corrosive × Toxic as a product.
Grow a Garden mutation calculator · Crop value calculator · Mutations list & multipliers guide
Corrosive value by weight
Corrosive applies a 29× multiplier in the weather bracket. The table below shows the value it adds to a reference crop (base 50) across common harvest weights, so you can gauge how much this tag is worth before chasing it.
| Weight | Base crop value | With Corrosive (29×) | Value added |
|---|---|---|---|
| 1 kg | 50 | 1.45K | +1.4K |
| 2 kg | 200 | 5.8K | +5.6K |
| 5 kg | 1.25K | 36.3K | +35K |
| 10 kg | 5K | 145K | +14K |
Corrosive value impact
Hazard bracket without fake wipe rules
Corrosive beside Toxic: multipliers total 43 across two icons, so the bracket is 1 + (43 − 2) = 42. Bring Infected in and the three-tag total becomes 61 with bracket 59. That remains additive padding inside one environmental factor, not a three-way product. Pair the bracket with a real growth winner: on a 2 kg crop with base 20,000 and Golden (20×), weight² = 4; 20,000 × 4 = 80,000; × 20 growth = 1,600,000; × 42 envBracket = 67,200,000 Sheckles before friend boost.
Radioactive (72×) is a heavier hazard neighbor when event calendars overlap swamp weeks. Corrosive alone does not consume the growth slot, and nothing in the conflict map forces Corrosive to delete Wet or Overgrown — report the harvest snapshot, not lore about acid wiping moisture history.
Trading etch proof on fungal weeks
Buyers discount anonymous 29× claims. Capture the weather banner plus the Corrosive icon together. Shroomified (49×) event tags can sit beside Corrosive when mycelium events overlap toxic weather: sum 78, count 2, envBracket = 77 — still bracket math, still not Corrosive × Shroomified.
Plant high-base seeds that finish inside the hazard window rather than mid-grow swaps hoping an etch will stick after clear skies return. Use the crop value calculator with actual kilograms before locking a WFL ask on acid-themed listings.
Common questions
- Does Corrosive replace Toxic on the same crop?
- No. Neither ID appears in CONFLICT_PAIRS. Both contribute to the environmental sum when both icons are present at harvest.
- Is Corrosive a growth mutation?
- No. It is weather-category environmental value. Growth exclusivity still applies only among growth-category tags such as Golden and Rainbow.