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Northern OG Strain Review: THC, Effects, Flowering Time & Yield

Posted On 10/01/2026 By Trent QCS

Northern OG is an original QCS strain: a feminized autoflower that is 65% indica with 20 to 23% THC, 8 to 9 weeks of flowering and 300 to 450 g/m² indoors. This Northern OG strain review covers the (OG Kush x Northern Lights) x Ruderalis genetics, the citrus and skunk flavour, the effects growers tend to describe and how to run it.

Strain profile
Northern OG
(OG Kush × Northern Lights) × Ruderalis · 65% indica · Autoflower · Feminized
20–23%
THC
8–9 weeks
INDOOR FLOWER
300–450 g/m²
INDOOR YIELD
Indica dominant · Beginner-friendly
CitrusSkunkFloral
Autoflower: no light-cycle change needed
Quebec Cannabis Seeds
Northern OG autoflower cannabis seeds, an original QCS strain bred in Quebec

Northern OG strain at a glance

Genetics(OG Kush × Northern Lights) × Ruderalis
TypeAutoflower, feminized, 65% indica / 35% sativa
THC20 to 23%
Flowering time8 to 9 weeks indoors
Yield300 to 450 g/m² indoors
FlavourCitrus, skunk, floral
Growing levelBeginner-friendly, compact
Pack5 feminized autoflowering seeds
BreederQuebec Cannabis Seeds (original QCS genetics)

THC level20–23%0%10%20%30%Scale 0–30% THC by dry weight. Range from the QCS product page; real results vary by grow.

What is the Northern OG strain?

Northern OG is an original QCS strain: Quebec Cannabis Seeds is its original breeder, and these are our own genetics bred in Quebec.

Northern OG is an autoflowering cross bred by Quebec Cannabis Seeds from OG Kush and Northern Lights, then crossed with Ruderalis. The idea is simple: combine the citrusy, gassy character that OG Kush is known for with the resin and calm of Northern Lights, and wrap it in an autoflowering plant that finishes without a change in light hours.

OG Kush is one of the most influential lines of the last few decades and is commonly described as a Californian classic with lemon, pine and fuel notes, though its exact origin is debated. Northern Lights is widely described as an Afghani-based indica known for resin and a compact build. Northern OG pairs the two for growers who want easy plants and classic flavour.

Names are not standardised: many seed companies sell something called OG or Northern, and their versions may differ. Other seed companies sell strains with the same or a similar name, and their versions may differ, so the numbers on this page are for the QCS version only.

Is Northern OG indica or sativa?

QCS lists the balance at 65% indica and 35% sativa, so it leans indica without being a pure couch plant. That mix is often described as a good compromise: relaxing body effects with some mental stimulation. For a closer look at the indica side, read our guide to what indica does to you.

Smell and flavour: citrus, skunk and floral

QCS describes the flavour as citrus, skunk and floral, and the page adds "pungent and skunky, with sour and sweet notes". That fits the OG Kush influence, which consumers typically associate with lemon, pine and gas. The Northern Lights half tends to soften the edges with floral and earthy undertones.

It is a loud plant. Indoors, plan for odour control; a carbon filter is the standard approach in a tent.

Northern OG effects

QCS describes the effect as starting with body relaxation, balanced by some mental stimulation. Consumers of OG Kush and Northern Lights lines commonly report a calm body feel with a clear head, which makes this a plausible all-rounder for late afternoon or evening.

The QCS page advises newer consumers to start with a small amount, and we agree. At 20 to 23% THC it is solid, so go slowly, wait before taking more and respect your own tolerance. Effects vary, and this is not medical advice.

How strong is Northern OG? THC content

QCS lists Northern OG at 20 to 23% THC, a strong figure that sits in the middle of our range. If you want more power, our THC over 25% collection has the strongest seeds in the catalog.

Real potency depends on light, feeding, harvest timing and cure. The usual advice for autoflowers is to harvest by trichome development rather than by the calendar, which also helps you choose a more energetic or more relaxing finish.

Growing Northern OG: flowering time and yield

QCS describes Northern OG as easy to grow for both novice and experienced growers, with "Beginner-friendly" and "Compact, balcony-friendly" badges. It flowers automatically in 8 to 9 weeks, so the same long-day light schedule can be used from start to finish. The plant stays moderately compact and is described as having high resistance to pests and diseases, which is not the same as immunity.

Expected yield is 300 to 450 g/m² indoors, a range and not a guarantee. The product page does not give an outdoor yield or harvest date, so we do not show an outdoor figure; it advises sowing outdoors after the last frost.

Planting tips from the QCS page: sow straight into the final pot because autoflowers dislike transplanting, keep the medium damp but not soaked at about 22 to 25 C until germination, and keep conditions stable because stress can reduce yield. Check local laws before planting, and see our autoflower seeds guide for more.

Flowering time56–63 days020406080100days of floweringAutoflower: sow outdoors after the last frost

What customers report

Northern OG has no customer reviews yet on our site, so we have no real grower reports to quote, and we will not invent any. Everything above comes from the QCS specifications and from general knowledge of OG Kush and Northern Lights.

If you grow it, send us your notes by email, honest complaints included. The seeds are covered by our 80% germination guarantee with replacements, so if a pack under-performs, contact us.

Is Northern OG right for you?

Choose Northern OG if you want an easy, compact autoflower with a citrusy, skunky flavour, a balanced indica-leaning effect and a strength in the low 20s. If you prefer to grow photoperiod plants, browse our feminized seeds. For another OG-style option, read our review of Black Cherry OG.

Why grow Northern OG from Quebec Cannabis Seeds?

  • Bred in Quebec by the original breeder. Quebec Cannabis Seeds (QCS) is the original breeder of Northern OG, one of our own QCS Originals, bred here since 2015 by a grower with 35+ years of experience.
  • Guaranteed. 80% germination guarantee with replacements, and delivery guaranteed. If a pack under-performs, email us and we make it right.
  • Free seeds with every order, and free shipping on orders over $200.
  • Fast, discreet shipping. Ships from Quebec within 24 hours Monday to Friday in plain, unbranded packaging, to Canada (Canada Post) and to the USA (1–2 business days by Express).
  • Real support. Every email answered within 24 hours.

Buy Northern OG seeds → Canada delivery Shipping to the USA

Northern OG: frequently asked questions

What is the Northern OG strain?

Northern OG is an original QCS autoflower made from OG Kush and Northern Lights crossed with Ruderalis. It is 65% indica and 35% sativa with 20 to 23% THC.

Is Northern OG indica or sativa?

It is indica dominant: 65% indica and 35% sativa according to the QCS product page.

How strong is Northern OG?

QCS lists 20 to 23% THC. Newer consumers should start with a small amount.

How long does Northern OG take to flower?

About 8 to 9 weeks of flowering indoors. These are ranges, not promises.

How much does Northern OG yield?

QCS lists 300 to 450 g/m² indoors, as a range and not a guarantee. No outdoor yield is given.

Is Northern OG easy to grow?

Yes. QCS describes it as easy to grow for beginners and experienced growers, compact, with high resistance to pests and diseases (not immunity).

What does Northern OG taste and smell like?

QCS lists citrus, skunk and floral, described as pungent and skunky with sour and sweet notes.

Where can I buy Northern OG seeds in Canada and the USA?

Quebec Cannabis Seeds sells feminized Northern OG autoflower seeds in packs of 5, 10 and 20. We ship across Canada in 3 to 7 days (2 to 3 days Express) and to the USA in 1 to 2 business days by Express, with free shipping over $200 and an 80% germination guarantee.

A note on the numbers in this article: harvest dates, flowering times and yields are ranges, not promises. They vary depending on growing conditions: the grower, the method and the season's weather. No strain is 100% mold resistant. How we set these numbers →

View Northern OG seeds →

About this article

Published by the Quebec Cannabis Seeds team. QCS was founded in 2015 by Trent LaPierre, a Quebec breeder with more than 35 years of hands-on growing experience. Genetics we bred ourselves are described from our own breeding work; when a strain comes from another breeder, we say so and credit them. How we work. Last updated: November 6, 2026.

Sources and further reading: Cannabis Act (Justice Laws, Government of Canada) · Cannabis Regulations (SOR/2018-144). Rules on cannabis seeds differ by province and state; check your local regulations before ordering.

Disclaimer

This blog is for educational purposes only. It is not legal, medical or professional advice. Cannabis laws vary by region, and you are responsible for knowing and following the laws that apply to you before buying seeds or growing. Results vary with environment, experience and genetics, and any action you take based on this content is at your own risk. QCS and its authors are not liable for any loss or legal consequence resulting from its use.

Avertissement

Ce blogue est offert à titre éducatif seulement. Il ne constitue pas un avis juridique, médical ou professionnel. Les lois sur le cannabis varient selon les régions : il vous incombe de connaître et de respecter celles qui s’appliquent à vous avant d’acheter des graines ou de cultiver. Les résultats varient selon l’environnement, l’expérience et la génétique, et toute action prise à partir de ce contenu l’est à vos propres risques. QCS et ses auteurs déclinent toute responsabilité en cas de perte ou de conséquence juridique découlant de son utilisation.

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