🥶 Subzero Mutation in Grow a Garden — ×40 Multiplier
Subzero is a weather-triggered mutation with multiplier ×40. Farm it during the listed weather (see the weather events hub), or use any pet/spray named in the trigger. It is not a growth mutation, so it can sit under Gold or Rainbow. Trigger: During Route Runner or Frozen Ice King.
Ranked #41 of 108 tracked mutation pages by multiplier.
📐 How to Get the Subzero Mutation
Trigger (from our mutation data): During Route Runner or Frozen Ice King.
Watch the in-game forecast and the weather events list. Shops restock on a separate clock — use the stock tracker for Seed/Gear timers, not for weather. If a pet is named above, that pet can apply this mutation without the weather.
💰 Worked Examples: Subzero on a Sunflower
Numbers use the site formula Base × (Weight/BaseWeight)² × Growth × (1 + Σmutations − count) and Sunflower's listed base. Plug a live crop into the Grow a Garden calculator for other weights.
🔗 Stacking & Best Combos
Once Subzero is on a fruit it follows the additive rule with other non-growth mutations: 1 + Σ(multipliers) − count. Gold (×20) or Rainbow (×50) then multiplies that total. Cleaning Spray (Gear Shop, listed on stock) can strip mutations if you need to rebuild a fusion.
📊 Where Subzero Ranks
Subzero is the #41 most valuable mutation out of 108 tracked entity pages by multiplier, sitting just behind 🗡️ Severed (×40) and just ahead of 💡 Enlightened (×35).
The mutations hub calculator also lists mutations that do not yet have their own URL. This page is the entity URL for Subzero only.
❓ FAQ
What is the Subzero mutation in Grow a Garden?
Subzero (🥶) is a weather-triggered mutation that applies a ×40 multiplier to a crop's Sheckle value. During Route Runner or Frozen Ice King. It is not a crop and not a pet; it is a fruit modifier used in the same formula as the homepage calculator.
How do you get the Subzero mutation?
During Route Runner or Frozen Ice King. Multiplier: ×40.
Does Subzero stack with Gold or Rainbow?
Yes. Subzero is not a growth mutation, so Gold (×20) or Rainbow (×50) can multiply it. With other environmental mutations it uses 1 + Σ − count first, then growth.
What crop should I put Subzero on?
Any crop uses the same multiplier. This site's worked examples use Sunflower (Divine, 50,138₡ base, 8.55 kg) because it is also the Dawnbound reference crop. Weight² usually moves the number more than swapping a mid-tier crop. Use the Grow a Garden calculator for a live fruit.
Plug Subzero into any crop, weight, and mutation stack for the real number.
Open Grow a Garden Calculator →More Weather-Triggered Mutations
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