Français Fat Bastard is a QCS original: an autoflowering, 50/50 hybrid that QCS lists at 30 to 35% THC. This Fat Bastard strain review pulls together our own specs, real customer reviews and what growers report across the web, so you can decide if it belongs in your garden.
Fat Bastard strain at a glance
| Genetics | (Goldmember × Monkey Spunk) × Ruderalis |
| Type | Autoflower, feminized, 50% indica / 50% sativa |
| THC | 30 to 35% (QCS figure) |
| Flowering time | 8 to 9 weeks indoors |
| Yield | 350 to 400 g/m² indoors, 100 to 150 g per plant outdoors |
| Flavour | Skunk, diesel, floral |
| Growing level | Beginner-friendly, compact |
| Pack | 5 feminized autoflowering seeds |
| Breeder | Quebec Cannabis Seeds (original QCS genetics) |
What is the Fat Bastard strain?
Fat Bastard Autoflower is the autoflowering version of the strongest strain we sell. Quebec Cannabis Seeds bred it from Goldmember and Monkey Spunk and crossed it with Ruderalis, so it flowers on its own clock instead of waiting for shorter days. The result is a 50/50 hybrid with a sweet, skunky, gassy profile that suits beginners as well as experienced growers.
One thing worth knowing before you search around: several seed companies sell a strain called Fat Bastard, and each uses its own breeding. Lineages, THC figures and flowering times you read elsewhere may describe a different cross. The numbers on this page are for the QCS version only.
Is Fat Bastard indica or sativa?
Neither side wins. Fat Bastard Autoflower is a 50% indica, 50% sativa hybrid. In the garden that shows up as a sativa-style stretch: two growers saw plants shoot up to about 4 feet, so give it a 3-gallon pot or bigger and some headroom. Not sure which side suits you? Read what indica does to you before you choose.
Smell and flavour: skunk, diesel and floral sweetness
QCS describes the taste as skunk, diesel and floral. Customers use similar words: one grower called the smell very good by week seven, and another described the flowers as “sweet but gassy”. Elsewhere on the web, people who have tried other Fat Bastard cuts also mention diesel, berry and earthy notes, so the gassy side of the profile is consistent.
Appearance: dense nugs, orange hairs, purple and olive
Growers describe very hard, dense nugs with fiery orange hairs running through purple and olive green. Expect plants that vary a little from seed to seed: one grower who ran four got four different plants, one with a huge central bud, one with eleven thick, even colas and one bushy to the bottom, and all of them good.
Fat Bastard effects
Fat Bastard is a high-THC hybrid, so respect the dose. Customers call it extremely potent. Across the web, consumers of Fat Bastard cuts most often report uplifted, creative and relaxed effects, with dry eyes as a commonly reported downside. Effects always vary from person to person, so start low, especially if you are new to strong strains.
How strong is Fat Bastard? THC content
QCS lists Fat Bastard Autoflower at 30 to 35% THC, which is why we call it the strongest strain we sell. For context, many cannabis strains sit well below that range, so treat this as a seriously potent one. THC always depends on how the plant is grown, dried and cured. If you prefer something milder, browse our high THC seeds for comparison or ask us for a recommendation.
Growing Fat Bastard: flowering time and yield
Because it is an autoflower, Fat Bastard flowers on its own schedule with no change in light hours. Indoors it takes 8 to 9 weeks of flowering after a short veg and yields 350 to 400 g/m². Outdoors expect 100 to 150 g per plant. Since it does not wait for shorter days, you can plant it in May, June or even July and still harvest before frost. A Quebec grower who started in mid-June was in early flower by mid-August.
Indoor is measured per m², outdoor per plant. Ranges from the QCS product page, not guarantees.
Growing tips from real reviews and our experience: use low-stress training and a net, and avoid topping or transplanting, which costs an autoflower time it cannot get back. The buds are dense, so keep temperature and humidity steady in the last weeks. Want the full method? Start with our autoflower seeds guide.
What customers report
Fat Bastard Autoflower has twenty reviews on our site and averages 4.6 out of 5. Here is what they say, including the one honest complaint.
- Growers who come back: one grower has run it six times, with 100% germination every time and big, bushy plants that gave amazing harvests.
- Variety between plants: a grower of four got four very different plants, all good.
- Dense, potent flowers: a first-time SCROG grower reported very hard, dense nugs, sweet but gassy and extremely potent.
- Height: two reviewers saw plants reach about 4 feet with a sativa structure, so plan for headroom.
- Germination: one 2025 reviewer had three of five seeds come up. Our seeds are guaranteed, so if a pack under-performs, contact us and we will make it right.
Is Fat Bastard right for you?
Choose Fat Bastard Autoflower if you want a very high-THC, skunky and gassy autoflower that is easy to grow and does not need a light schedule. If you want a lower, gentler potency, look at one of our feminized photoperiod strains instead, or read our review of Blue God.
Why grow Fat Bastard from Quebec Cannabis Seeds?
- Bred in Quebec. Fat Bastard is 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.
Fat Bastard: frequently asked questions
What is the Fat Bastard strain?
Fat Bastard Autoflower is a QCS original: a 50/50 autoflowering hybrid bred from Goldmember and Monkey Spunk and crossed with Ruderalis, with 30 to 35% THC.
Is Fat Bastard indica or sativa?
It is a 50% indica, 50% sativa hybrid. Plants show a sativa-style stretch, with some reaching about 4 feet.
Is Fat Bastard an autoflower?
The QCS version is. It flowers on its own schedule without a change in light hours, so you can plant it from May to July in Quebec and still harvest before frost.
How strong is Fat Bastard?
QCS lists it at 30 to 35% THC. That is very high, so start with a small dose.
How long does Fat Bastard take to flower?
About 8 to 9 weeks of flowering indoors after a short veg. These are ranges, not promises.
How much does Fat Bastard yield?
350 to 400 g/m² indoors and 100 to 150 g per plant outdoors.
Is Fat Bastard easy to grow?
Yes, it is beginner-friendly. Use low-stress training and a net, give it a 3-gallon pot or bigger, and avoid topping or transplanting.
What does Fat Bastard taste and smell like?
Skunk, diesel and floral, described by customers as sweet but gassy.
Where can I buy Fat Bastard seeds in Canada and the USA?
Fat Bastard Autoflower seeds are sold at Quebec Cannabis Seeds in packs of 5, 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 →
