NightFire OG by Sin City Seeds

NightFire OG strain photo
Type 70% sativa 30% indicaFlower ±65 daysCross White Fire × WhiteNightmare

A indica-leaning cross of White Fire × WhiteNightmare, NightFire OG — released by Sin City Seeds — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 65 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real NightFire OG grows against.

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Similar strains

Sequoia StrawberrySin City Seeds · ±56 daysTheREMSin City Seeds · ±68 daysPowerNapSin City Seeds · ±60 daysSourNightmare KushSin City Seeds · ±65 daysAlpine GuavaSin City SeedsSin City Seeds - Cancers NightmareSin City SeedsAmnesikaPhilosopher Seeds · ±65 daysCrockett's TangieCrockett · ±67 daysCrystal CloudM.O.C. · ±63 daysFenomedFenocan · ±60 daysFenomaxFenocan · ±60 days1000L x DieselMacaronesia Seeds · ±60 daysAll Sin City Seeds →
BreederSin City Seeds
Type70% sativa 30% indica
Flowering time±65 days
EnvironmentOutdoors
LineageWhite Fire × WhiteNightmare

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🧬 Explore the family: White Fire · WhiteNightmare

Ancestry Pedigree

White Fire
OG Raskal Genetics
Fire Kush
Clone Only Strains
OG Kush
Clone Only Strains
Thailand Sativa
Original Strains
Chem Dawg
Unknown or Legendary
Indica
Original Strains
The White
Clone Only Strains
Indica Sativa
Original Strains
WhiteNightmare
Sin City Seeds
Blue Dream
Clone Only Strains
Blueberry
DJ Short
Blueberry Line
Unknown or Legendary
Temple Flo
DJ Short
Floral Line
Unknown or Legendary
Purple Thai
Unknown or Legendary
Highland Oxacan Gold
Unknown or Legendary
Mexico Sativa
Original Strains
Chocolate Thai
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
HTAF
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Super Silver Haze
Mr Nice Seedbank
Super Silver Haze
Green House Seeds
Original Haze
Cultivators Choice
Haze
Unknown or Legendary
Mexico Sativa
Original Strains
Colombia Sativa
Original Strains
Thailand Sativa
Original Strains
India Sativa
Original Strains
Original Haze
Cultivators Choice
USA Mostly Indica
Original Strains
White Moonshine
Unknown or Legendary
The White
Clone Only Strains
Blue Moonshine
DJ Short
Blueberry
DJ Short

Growing NightFire 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 White Fire or WhiteNightmare 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.

NightFire OG FAQ

How long does NightFire OG take to flower?

NightFire OG typically flowers in around 65 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is NightFire OG an indica or a sativa?

NightFire OG is listed as 70% sativa 30% indica.

What are the parents of NightFire OG?

NightFire OG was bred from White Fire × WhiteNightmare by Sin City Seeds.

What environment does NightFire 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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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.