🥶 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.
Last verified . Multiplier and trigger come from this site's mutation dataset — we do not invent extra rates.
Ranked #41 of 108 tracked mutation pages by multiplier.
📌 When to use Subzero
Farm Subzero during the listed weather. If a pet is also named in the trigger, that pet is the off-weather path.
📐 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
Does Subzero use the homepage calculator formula?
Yes. Subzero is a fruit modifier at ×40, not a crop and not a pet. Plug it into the Grow a Garden calculator with a real kg. This FAQ does not repeat the intro paragraph.
How do you get the Subzero mutation?
During Route Runner or Frozen Ice King.
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. Worked examples on this page use Sunflower (50,138₡ at 8.55 kg) because that crop is also the Dawnbound reference. Weight² usually moves the number more than swapping a mid-tier crop.
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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