Français Mandarin OG is an original QCS strain: a feminized autoflower, (Mandarin × OG Kush) × Ruderalis, listed as 60% sativa and 40% indica at 19 to 23% THC, 7 to 8 weeks of flowering and 300 to 400 g/m² indoors. This Mandarin OG strain review covers the QCS specs and what growers commonly report about citrus and OG Kush crosses. QCS sells the autoflower version, which is the one reviewed here.
Mandarin OG strain at a glance
| Genetics | (Mandarin × OG Kush) × Ruderalis |
| Type | Autoflower, feminized, 60% sativa / 40% indica |
| THC | 19 to 23% |
| Flowering time | 7 to 8 weeks indoors |
| Yield | 300 to 400 g/m² indoors |
| Flavour | Citrus, earthy, skunk |
| Growing level | Low-maintenance, for beginners and experienced growers |
| Size | Moderately compact |
| Pack | 5 feminized autoflowering seeds |
| Breeder | Quebec Cannabis Seeds (original QCS genetics) |
What is the Mandarin OG strain?
Mandarin OG is an original QCS strain: Quebec Cannabis Seeds is its original breeder, and these are our own genetics, bred in Quebec by a grower with more than 35 years of experience.
Mandarin OG Autoflower is a feminized strain that Quebec Cannabis Seeds bred by crossing Mandarin with OG Kush and then adding Ruderalis so that it flowers by age rather than by the light cycle. In other words, it takes a bright citrus parent and a famous Californian-style kush and packages them into a plant that finishes on its own.
OG Kush is one of the best-known names in cannabis; growers and consumers commonly describe it as earthy, pine-and-fuel with a strong, rounded effect. Paired with a citrus-forward Mandarin parent, you can expect a more zesty, less purely fuel-forward profile. Several seed companies sell strains with similar names, and their breeding may differ, so the numbers on this page are for the QCS version only.
Is Mandarin OG indica or sativa?
QCS lists Mandarin OG as 60% sativa and 40% indica. That tilt towards sativa shows up in the effects description (uplifting and euphoric) while the 40% indica side is credited with body relaxation.
Not sure what the indica half does? Our guide to what indica does to you covers it in plain language.
Mandarin OG smell and flavour
The product page lists citrus, earthy and skunk and describes the aroma as pungent, skunky and sour, with a citrus, earthy, sweet profile. If you like orange-peel brightness sitting on top of a classic skunky base, this is the picture to hold in your mind.
Growers commonly note that skunky, sour plants have a noticeable smell in late flower, so consider odour control if you grow indoors. Flavour also depends heavily on drying and curing.
Mandarin OG effects
QCS describes an uplifting, euphoric high balanced by body relaxation. Consumers of sativa-leaning citrus-and-OG hybrids commonly mention a bright, talkative mood, though it varies from person to person and with dose.
Start low, especially if you are not used to potent hybrids. We make no medical claims.
How strong is Mandarin OG? THC content
QCS lists Mandarin OG at 19 to 23% THC. The page gives no CBD figure, so we will not guess one. That is a moderate-to-strong range: stronger than many classic strains, but below our very strongest ones. THC depends on the grow, the dry and the cure.
To compare with the top of the range, see our cannabis seeds over 25% THC.
Growing Mandarin OG: flowering time and yield
Because it is an autoflower, Mandarin OG flowers without a light change. Indoors it takes 7 to 8 weeks of flowering and yields 300 to 400 g/m². The page does not list a total seed-to-harvest time, an outdoor harvest date or an outdoor yield, so we will not quote any.
QCS describes the plant as low-maintenance and moderately compact, suited to indoor spaces of different sizes, and highly resistant to pests and disease, which it presents as a good reason to try it outdoors. Common autoflower advice applies: sow into the final container, go easy on stress, and keep temperature steady. Results depend on the grower, the method and the weather, and no strain is 100% mold resistant.
What customers report
Mandarin OG has no customer reviews on our site yet, so we have nothing to summarize and will not invent anything. In the meantime:
- Specs: everything above comes from the QCS product page.
- Review it: the product page has a review form if you grow it.
- Guarantees: 80% germination guarantee with replacements, and delivery guaranteed.
Is Mandarin OG right for you?
Choose Mandarin OG if you want a low-maintenance autoflower with a citrus-and-skunk character and an uplifting, sativa-leaning effect that finishes in around two months of flowering.
See more in our autoflower seeds guide, or read our Black Cherry OG review for a different OG-style profile.
Why grow Mandarin OG from Quebec Cannabis Seeds?
- Bred in Quebec by the original breeder. Quebec Cannabis Seeds (QCS) is the original breeder of Mandarin 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.
Mandarin OG: frequently asked questions
What is the Mandarin OG strain?
Mandarin OG is an original QCS feminized autoflower, (Mandarin × OG Kush) × Ruderalis, with 19 to 23% THC.
Is Mandarin OG indica or sativa?
QCS lists it as 60% sativa and 40% indica, with an uplifting, euphoric effect balanced by body relaxation.
How strong is Mandarin OG?
QCS lists 19 to 23% THC. Start low if you are new to this strength.
How long does Mandarin OG take to flower?
About 7 to 8 weeks of flowering indoors. QCS does not list a total seed-to-harvest time. These are ranges, not promises.
How much does Mandarin OG yield?
300 to 400 g/m² indoors. QCS does not list an outdoor yield.
Is Mandarin OG easy to grow?
Yes. QCS describes it as low-maintenance, moderately compact and highly resistant to pests and disease.
What does Mandarin OG taste and smell like?
Citrus, earthy and skunk, with a pungent, skunky and sour aroma.
Where can I buy Mandarin OG seeds in Canada and the USA?
Mandarin OG Autoflower seeds are sold at Quebec Cannabis Seeds in packs of 5 feminized seeds, shipped from Quebec across Canada and to the USA, with germination and delivery guaranteed.
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 →
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.
