Can Subzero, Frozen, and Frostbite all stack?

No. Frozen conflicts with Frostbite in mutation-conflicts.ts. Subzero may pair with Frozen or with Frostbite, not with both at once.

Does Subzero conflict with Wet?

Subzero has no Wet conflict pair. Wet still conflicts with Frozen and Chilled, so wet-cold planning hinges on those tags, not on Subzero itself.

Subzero Mutation Grow a Garden

Subzero is extreme cold crystallization at 34× weather environmental—heavier than Frozen’s 10× or Frostbite’s 11×, and frequently mis-sold as a free triple with both of those tags despite Frozen conflicting with Frostbite.

34×weatherStackable

How to trigger

mutations.ts: extreme cold crystallization from arctic blizzard weather. Blizzard weather.ts lists Frozen, Frostbite, and Chilled—not Subzero. Treat Subzero as catalog arctic wording, not as an unpublished Blizzard bonus line.

Stacking rules

Subzero is weather, stackable, environmental. Solo: 1 + (34 − 1) = 34. Subzero + Frozen (10×) → sum 44, n = 2 → 43. Subzero + Frostbite (11×) → sum 45, n = 2 → 44. Frozen and Frostbite conflict with each other, so Subzero + Frozen + Frostbite is illegal. Frozen also conflicts with Chilled and Wet; Ember conflicts with Frozen, Chilled, and Frostbite—not with Subzero. Growth exclusivity still applies.

Grow a Garden mutation calculator · Crop value calculator · Mutations list & multipliers guide

Subzero value by weight

Subzero applies a 34× 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.

Subzero value impact on a reference crop (base 50)
Weight	Base crop value	With Subzero (34×)	Value added
1 kg	50	1.7K	+1.65K
2 kg	200	6.8K	+6.6K
5 kg	1.25K	42.5K	+41.3K
10 kg	5K	17K	+165K

Subzero value impact

Cold pairs that the conflict map allows

Pick a cold partner: Frozen or Frostbite, not both. Subzero stacks with either because CONFLICT_PAIRS never names Subzero. The popular “arctic triple” of Subzero + Frozen + Frostbite fails the Frozen/Frostbite pair even when Subzero is present.

Wet conflicts with Frozen and Chilled. A Wet + Subzero harvest is legal if Frozen and Chilled are absent; chasing Wet while also wanting Frozen on the same plant fails the wet/cold matrix.

Heat and growth lanes

Ember blocks Frozen, Chilled, and Frostbite. Subzero has no Ember row, but an Ember-led heat harvest still cannot carry those cold partners. Plan thermal identity before the weather flips.

Subzero never occupies growth. Rainbow or Golden multiplies the env bracket; Tiny would crush the growth factor instead. Run weight squared through the calculator before pricing a 34× icon alone.

Common questions

Can Subzero, Frozen, and Frostbite all stack?: No. Frozen conflicts with Frostbite in mutation-conflicts.ts. Subzero may pair with Frozen or with Frostbite, not with both at once.
Does Subzero conflict with Wet?: Subzero has no Wet conflict pair. Wet still conflicts with Frozen and Chilled, so wet-cold planning hinges on those tags, not on Subzero itself.