Français Super Critical is an original QCS strain: a feminized Critical × Skunk hybrid, 60% indica, with about 18 to 24% THC, a fast 45 to 55 day flowering time and yields of 500 to 650 g/m² indoors. It is a newer addition with no customer reviews yet, so this review is built on our specs and on what growers commonly report about its parents.
Super Critical strain at a glance
| Genetics | Critical × Skunk |
| Type | Feminized, 60% indica / 40% sativa |
| THC | About 18 to 24% |
| Flowering time | 45 to 55 days indoors |
| Yield | 500 to 650 g/m² indoors, 600 to 900 g per plant outdoors |
| Flavour | Skunk, sweet, earthy |
| Outdoor harvest | Late September to early October |
| Growing level | Easy |
| Pack | 5 feminized seeds (10 and 20 seed packs also available) |
| Breeder | Quebec Cannabis Seeds (original QCS genetics) |
What is the Super Critical strain?
Super Critical is an original QCS strain: Quebec Cannabis Seeds is its original breeder, and these are our own genetics, bred in Quebec since 2015 by a grower with more than 35 years of experience.
Super Critical is one of our own crosses, pairing Critical with Skunk. Critical-type plants are known among growers for heavy, weighty yields and fast finishes, while Skunk lines bring a pungent, classic aroma and sturdy, easy growth. The result is a plant designed to be productive, quick and forgiving. Our product page sums it up with the tagline of big yields and a fast finish.
Several seed companies sell Critical crosses with similar names, and their lineages and numbers vary. The figures here are for the QCS version only.
Is Super Critical indica or sativa?
QCS lists Super Critical at 60% indica and 40% sativa, so it is an indica-dominant hybrid. In the garden, indica-dominant plants usually mean a manageable frame, thick buds and a heavier, calming finish to the effect. The sativa share helps keep the head effect from being purely sedating. For a closer look at the indica side, read our guide on what indica does to you.
Smell and flavour: classic skunk with sweet earthiness
QCS describes the flavour as skunk and earthy, with a "classic skunky punch, with sweet, earthy depth". That matches the usual way growers describe Skunk crosses: a pungent, musky top note over something sweeter and softer. Because the flowers are thick and weighty, expect a strong smell in late flower and plan for carbon filtration indoors.
Super Critical effects
QCS says the high starts uplifting and happy and then turns calm and relaxed in the body. That arc is common with indica-dominant hybrids: a bright start followed by a settled finish. With a THC range of about 18 to 24%, it is generally seen as medium to strong. Start low, give it time and avoid driving or demanding tasks. Individual responses differ and we make no medical claims.
How strong is Super Critical? THC content
QCS lists Super Critical at about 18 to 24% THC, varying by plant and grow. CBD is not listed. That is a wide range, so a lower-end plant will feel mellower and a top-end one more robust. Lighting, nutrition, harvest timing and cure all play a role. For stronger options, browse our seeds over 25% THC.
Growing Super Critical: flowering time and yield
This is where Super Critical shines. Indoors it flowers in just 45 to 55 days, one of the shortest windows among photoperiod strains, and yields 500 to 650 g/m² under strong lighting and training. Outdoors it is ready in late September to early October, with 600 to 900 g per plant depending on season and plant size. That timing suits Canada and other northern climates, and it is why we call it a big-yield, fast-finish strain.
QCS rates it easy. Growing tips: use topping and low-stress training to spread the canopy, support the thick colas, and keep airflow strong in the last two weeks, because dense, weighty flowers hold moisture. Our page uses the standard "mould tolerant" label: it means less prone to mould, not immune. Because the flowering window is short, watch your trichomes rather than the calendar when deciding on harvest. If you want an even shorter wait, see our fast version seeds.
What customers report
Super Critical is a recent addition and does not have customer reviews on our site yet, so we will not make any up. Instead, here is what to look for as early growers report back.
- Speed: does it really finish in 45 to 55 days under your setup?
- Yield: how close do you get to 500 to 650 g/m² with training?
- Phenotypes: as with any seed-grown strain, expect some variation between plants.
- Moisture: check dense colas for humidity late in flower.
If you grow Super Critical, we would love to hear your results. Email us or call 514-805-2741 and leave a review on the product page.
Is Super Critical right for you?
Super Critical is a strong fit for growers who want a short flowering window, big yields, a classic skunk nose and an easy plant, and for northern outdoor growers who need a late-September to early-October finish. It is a weaker choice if you want the top of the THC range or a fruity, dessert-style profile. Because it has no reviews yet, it is best for growers who do not mind being among the first to run it.
Explore more feminized seeds, or read our reviews of Blue God and Fat Bastard.
Why grow Super Critical from Quebec Cannabis Seeds?
- Bred in Quebec by the original breeder. Quebec Cannabis Seeds (QCS) is the original breeder of Super Critical, 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 Super Critical seeds → Canada delivery Shipping to the USA
Super Critical: frequently asked questions
What is the Super Critical strain?
Super Critical is an original QCS strain: a feminized cross of Critical and Skunk, bred in Quebec by Quebec Cannabis Seeds for big yields and a fast finish.
Is Super Critical indica or sativa?
QCS lists it as 60% indica and 40% sativa, so it is indica dominant.
How strong is Super Critical?
QCS lists about 18 to 24% THC, varying by plant and grow. CBD is not listed.
How long does Super Critical take to flower?
Indoors it flowers in 45 to 55 days. Outdoors it is ready in late September to early October.
How much does Super Critical yield?
QCS lists 500 to 650 g/m² indoors under strong lighting and training, and 600 to 900 g per plant outdoors. These are ranges, not promises.
Is Super Critical easy to grow?
Yes. QCS rates it easy. Training, good airflow and support for the heavy colas help.
What does Super Critical taste and smell like?
QCS describes a classic skunky punch with sweet, earthy depth.
Where can I buy Super Critical seeds in Canada and the USA?
You can order Super Critical feminized seeds from Quebec Cannabis Seeds. We ship from Quebec within 24 hours Monday to Friday: Canada in 3 to 7 days by standard mail or 2 to 3 days by Express, and the USA in 1 to 2 business days by Express. Shipping is free over $200, packaging is plain, delivery is guaranteed, the 80% germination guarantee comes with replacements, and every order includes free seeds. Questions? Call 514-805-2741.
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.
