Subzero by North Genetics
A indica-leaning cross of Chem Dawg × Strawberry Diesel, Subzero — released by North Genetics — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 60 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Subzero grows against.
🌿 Start a Subzero journal — free →
Similar strains
| Breeder | North Genetics |
|---|---|
| Type | indica/sativa |
| Flowering time | ±60 days |
| Environment | Outdoors |
| Lineage | Chem Dawg × Strawberry Diesel |
🌱 Get Subzero seeds →
Affiliate link — supports Cultivar at no cost to you.
🧬 Explore the family: Chem Dawg · Strawberry Diesel
Ancestry Pedigree
Unknown or Legendary
Original Strains
Reservoir Seeds
Clone Only Strains
Unknown or Legendary
Original Strains
Unknown or Legendary
Original Strains
Original Strains
Original Strains
Original Strains
Reservoir Seeds
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Sensi Seeds
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Original Strains
Original Strains
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Cultivators Choice
Unknown or Legendary
Soma Seeds
Unknown or Legendary
Unknown or Legendary
Unknown or Legendary
Original Strains
Original Strains
Growing Subzero: what to expect
As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Chem Dawg or Strawberry Diesel will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Subzero FAQ
How long does Subzero take to flower?
Subzero typically flowers in around 60 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Subzero an indica or a sativa?
Subzero is listed as indica/sativa.
What are the parents of Subzero?
Subzero was bred from Chem Dawg × Strawberry Diesel by North Genetics.
What environment does Subzero like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
📷 Growing Subzero and something looks off? Free AI photo diagnosis →
Facts compiled from public breeder listings. Growing Subzero? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
Track your own grow free — the journal grades your environment against these bands →
Get the one-page grow reference card
VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.