303 OG by Unknown or Legendary

Type mostly indicaCross Bubba Kush × Chemdog

303 OG is an indica-leaning cannabis strain from Unknown or Legendary, bred by crossing Bubba Kush × Chemdog. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real 303 OG grows against.

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Similar strains

3x CrazyUnknown or LegendaryChemdog ddUnknown or LegendaryLuca BrasiUnknown or LegendaryChemDUnknown or LegendaryTwisted Purple OG KushUnknown or Legendary · ±63 daysWhite KushUnknown or Legendary · ±67 daysAuto AnonyMASSCritical Mass Collective · ±75 daysAuto Candy CreamyPanoramix Genetics · ±77 daysAuto CriticalSeedmakers · ±65 daysAuto Cream MassMr. Hide · ±60 daysAuto Critical XXLApex Seeds · ±69 daysAuto Diesel MassMr. Hide · ±55 daysAll Unknown or Legendary →
BreederUnknown or Legendary
Typemostly indica
EnvironmentIndoors, Outdoors
LineageBubba Kush × Chemdog
Descendants303 White, 303 Purps

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🧬 Explore the family: Bubba Kush · Chemdog · 303 White · 303 Purps

Ancestry Pedigree

Bubba Kush
Clone Only Strains
Triangle Kush
Clone Only Strains
Unknown Strain
Original Strains
Hindu Kush Indica
Original Strains
USA Indica
Original Strains
Chemdog
Unknown or Legendary
Indica Sativa
Original Strains

Growing 303 OG: 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 Bubba Kush or Chemdog 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 OG FAQ

Is 303 OG an indica or a sativa?

303 OG is listed as mostly indica.

What are the parents of 303 OG?

303 OG was bred from Bubba Kush × Chemdog by Unknown or Legendary.

What environment does 303 OG 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 OG? 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.