Burning Desire
- THC
- 20–27%
- Flowering
- 8–9 wk
- Effect
- Happy
Nightfire OG strain
Bred by Sin City Seeds · White Fire OG × White Nightmare
Strain facts
Checked Oct 21, 2026 · 4 sources
Nightfire OG is a sativa from Sin City Seeds, bred from White Fire OG and White Nightmare. Its THC is about 20%, milder than 54% of the 2,347 strains in our database that list THC. It flowers in about 9 weeks (sources say 8.5–10 weeks) and is listed for a late October outdoor harvest.
Learn to grow Nightfire OG: Indoor & Outdoor Growing course, $199
- Type
- Sativa
- THC
- About 20%1 source
- Lineage
- White Fire OG × White Nightmare
- Breeder
- Sin City Seeds
- Flowering
- About 9 weeks8.5–10 weeks across 2 sources
4 sources for this profile
- Leafly public strain listing
- Weedmaps public strain listing
- Breeder information: Sin City Seeds
Grow facts
- SeedFinder (breeder listing: Sin City Seeds) Flowering, grow setting and yield indoor
Grow facts come from the breeder first, then seed banks and strain databases. With 2 sources we show the range and the middle; with 3 or more, the range and the median, after leaving out values far from the rest. The breeder's own value is the anchor, unless it is far from every other source (outside their range and more than 20% from their median); then we show the full range and the median of all of them. A fact from a single source is marked "1 source", and a fact no source lists is left out. Yields are converted to one unit: indoor per square meter, outdoor per plant.
CTU writes every profile from these facts; we do not copy other sites' descriptions. Values that are a generic default in the source data are left out. Last checked Oct 21, 2026.
Source: CTU strain dataset (public strain listings and breeder info, checked by CTU), verified Oct 2026. Potency, flavor and effects vary by grower, batch and plant. Facts no source lists are left out.
How to grow Nightfire OG
The grow facts a breeder or public strain listing gives for Nightfire OG.
- Flowering time
- About 9 weeks8.5–10 weeks across 2 sources. Slower than 51% of strains with a listed time
- Yield indoor
- About 400 g/m²300–500 g/m² (9.8–16.4 oz/ft²) · 1 source
- Grow setting
- Indoor and outdoor1 source
- Outdoor harvest
- Late OctoberLater than 23% of strains with a listed month
Flowering window (weeks after the switch to 12/12)
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
Listed outdoor harvest (northern hemisphere)
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Sources: the breeder, seed banks and strain databases listed under sources, checked Oct 2026. Percentages compare with every strain in our database that lists the same fact.
Learn to grow Nightfire OG: Indoor & Outdoor Growing course, $199
About Nightfire OG
Nightfire OG is listed in public strain databases as a sativa credited to Sin City Seeds. Its listed parents are White Fire OG and White Nightmare.
How strong is Nightfire OG?
Public listings give Nightfire OG a THC level of 20%, which is in the middle third of our dataset. Compared with all strains in our research dataset that have their own THC figure, it is higher than roughly 40% of them. Potency varies by grower, batch and lab, so read these numbers as typical values, not guarantees.
Nightfire OG aroma, flavor and terpenes
People most often describe the flavor of Nightfire OG as berry, lemon and pine. Its top listed terpenes are myrcene (earthy, musky), pinene (pine) and limonene (citrus). Myrcene is the lead terpene for about 44% of the high-confidence strains in our dataset, so it is a common profile. Terpenes shape smell and taste; their levels change from batch to batch.
Reported effects of Nightfire OG
People who have tried Nightfire OG most often report feeling energetic, talkative, tingly, euphoric and happy. These are user reports, not promises. Effects differ from person to person and depend on dose, setting and tolerance.
Growing Nightfire OG: what the data says
Its listed indoor flowering time is 9–10 weeks. Outdoors in the Northern Hemisphere, harvest is listed for Late October. Grow where home cultivation is legal, and follow your state rules.
Nightfire OG family tree
Its parents, from published lineage.
This strain
Nightfire OGSativa · 20% THC · 8.5–10 wk
Similar strains
Matched on shared parents, top terpenes, type and THC. Never on medical use.
Double Barrel OG
aka Double Barrel, Double Barrel OG Kush
- THC
- 20–23%
- Flowering
- 9–10 wk
- Terpene
- Myrcene
- Effect
- Hungry
Jungle Mac
- THC
- 24–26%
- Flowering
- 9–10 wk
- Terpene
- Limonene
- Effect
- Energetic
- Difficulty
- Intermediate
Nightmare Cookies
- THC
- 20–28%
- Flowering
- 8–10 wk
- Terpene
- Myrcene
- Effect
- Euphoric
- Difficulty
- Beginner
Where to buy
Find licensed dispensaries in your state
Only state-licensed stores, checked against official license lists.
Grow it
Flowering time, height and difficulty from the sources, then the full method in the Growing course.
