303 Diesel by The Fire Department

303 Diesel strain photo
Type indica/sativaCross Sour Diesel IBL × Sour Diesel

Bred by The Fire Department from Sour Diesel IBL × Sour Diesel, 303 Diesel is an indica-leaning cannabis variety. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real 303 Diesel grows against.

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Similar strains

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BreederThe Fire Department
Typeindica/sativa
EnvironmentOutdoors
LineageSour Diesel IBL × Sour Diesel
DescendantsDemonic Possetion

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🧬 Explore the family: Sour Diesel IBL · Sour Diesel · Demonic Possetion

Ancestry Pedigree

Sour Diesel IBL
Reservoir Seeds
Sour Diesel
Unknown or Legendary
NYC Diesel
Soma Seeds
Sour Diesel
Unknown or Legendary
Original Diesel
Unknown or Legendary
MassSuperSkunk
Unknown or Legendary
Super Skunk
Sensi Seeds
Skunk Nr1
Sensi Seeds
Skunk Nr1
The Seed Bank
Skunk Nr1
Cultivators Choice
Afghanistan Indica
Original Strains
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Afghanistan Indica
Original Strains
Chem Dawg
Unknown or Legendary
Indica
Original Strains
DNL
Unknown or Legendary
RFK
Unknown or Legendary
Skunk
Unknown or Legendary
Skunk Nr1
Cultivators Choice
Northern Lights
Unknown or Legendary
NYC Diesel
Soma Seeds
Sour Diesel
Unknown or Legendary
Afghani Hawaiian
Unknown or Legendary
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
Hawaii Hybrid
Original Strains

Growing 303 Diesel: 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 Sour Diesel IBL or Sour 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.

303 Diesel FAQ

Is 303 Diesel an indica or a sativa?

303 Diesel is listed as indica/sativa.

What are the parents of 303 Diesel?

303 Diesel was bred from Sour Diesel IBL × Sour Diesel by The Fire Department.

What environment does 303 Diesel 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.

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Facts compiled from public breeder listings. Growing 303 Diesel? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

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Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.