Fat Bastard Autoflower Cannabis Seeds Feminized
$60.00
5 Seeds Per Pack
Strain at a Glance
A compact 50/50 autoflower from the QCS team with very high THC and a sweet, fruity, skunky flavour. Original QCS genetics, bred by Quebec Cannabis Seeds in Quebec, Canada.
Genetic Balance
balance
Key Information
- THC30–35%
- Genetics(Goldmember × Monkey Spunk) × Ruderalis
- TasteSkunk • Diesel • Floral
- Indoor flowering time8–9 weeks
Specifications
| Strain | Fat Bastard |
|---|---|
| Seed type | Autoflower, feminized |
| Genetics | (Goldmember × Monkey Spunk) × Ruderalis |
| Genetic balance | Autoflower, 50% indica, 50% sativa |
| THC | 30–35% |
| Taste | Skunk, Diesel, Floral |
| Indoor flowering time | 8–9 weeks |
| Yield | 350–400 g/m² indoors, 100–150 g per plant outdoors |
| Pack size | 5 Seeds Per Pack |
These figures are ranges, not promises. Flowering time, harvest date and yield vary depending on growing conditions: the grower, the method and the season's weather. "Mold resistant" means mold tolerant: less prone to mold and slower to be affected. No strain is 100% mold resistant. How we set these numbers →
Taste & Aroma Profile



Sweet and fruity from Goldmember, with a skunky, gassy undertone from Monkey Spunk — one grower describes it as a “very good smell” by week seven.
About Fat Bastard
Genetics & strain profile
Fat Bastard Autoflower is the autoflowering version of the strongest strain we sell, bred by Quebec Cannabis Seeds from Goldmember and Monkey Spunk and crossed with Ruderalis so it flowers on its own clock. It is a 50/50 hybrid with 30 to 35% THC, one of our QCS Originals, and it is easy to grow, from beginners to experienced growers. Twenty reviews average 4.6 out of 5. A grower who has run it six times reports 100% germination every time and “big bushy plants” that gave “amazing harvests”; another, growing four, got four very different plants — one with a huge central bud, one with eleven thick, even colas, one bushy to the bottom — all of them good. A first-time SCROG grower describes “very hard dense nugs” with fiery orange hairs through purple and olive green, “sweet but gassy” and “extremely potent”. The honest note: a 2025 reviewer had three of five seeds come up — our seeds are guaranteed, so if a pack under-performs, contact us.
How Fat Bastard Autoflower grows
Because it is an autoflower, it flowers on its own schedule with no change in light hours, and goes from seed to harvest in about 8 to 9 weeks of flowering after a short veg. It is compact by Fat Bastard standards, but not tiny: two reviewers saw plants “shoot up to 4 feet” with a sativa structure, so give it a 3-gallon pot or bigger and some headroom. Indoors expect 350 to 400 g/m²; outdoors 100 to 150 g per plant, and because it does not wait for shorter days, you can plant it in May, June or even July and still harvest before the frost — a Quebec grower who started in mid-June was in early flower by mid-August. It responds well to low-stress training and a net; avoid topping or transplanting, which cost an autoflower time it cannot get back. The buds are dense, so keep temperature and humidity steady in the last weeks to prevent mould.
Taste, aroma and effect
Sweet and fruity from Goldmember, with a skunky, gassy undertone from Monkey Spunk — one grower describes it as a “very good smell” by week seven. The high is balanced: mentally stimulating first, then physically relaxing, and a long-time grower recommends it for migraines and back pain. At 30 to 35% THC it is far too strong for a newcomer; start with a very small amount. For the photoperiod version, see Fat Bastard; for other autoflowers, Granddaddy Purple Autoflower and Auto Purple Kush; to try several at once, the Autoflower Mix Pack.
Frequently Asked Questions
How long does Fat Bastard Autoflower take?
About 8 to 9 weeks of flowering after a short veg, with no change in light hours.
How much does Fat Bastard Autoflower yield?
350 to 400 g/m² indoors and 100 to 150 g per plant outdoors.
How strong is Fat Bastard Autoflower?
30 to 35% THC. Start with a very small amount.
How tall does Fat Bastard Autoflower get?
Compact for a Fat Bastard, but reviewers report plants reaching 4 feet; give it a 3-gallon pot or bigger.
Is Fat Bastard Autoflower easy to grow?
Yes. It suits beginners; use low-stress training rather than topping or transplanting.
Can I plant it late in the season?
Yes. Autoflowers do not wait for shorter days, so a June or July start still finishes before the frost.
What does Fat Bastard Autoflower taste like?
Sweet and fruity with a skunky, gassy undertone.
What are the parents of Fat Bastard Autoflower?
Goldmember and Monkey Spunk, crossed with Ruderalis.
Where can I buy Fat Bastard seeds in Canada?
Right here at Quebec Cannabis Seeds. Orders ship from Quebec within 24 hours on business days, in plain packaging, across Canada and to the USA, with a germination guarantee.
Order with confidence
- Germination guarantee. If fewer than 80% of your seeds germinate, we send replacement seeds.
- Delivery guarantee. We guarantee delivery of your order.
- Discreet packaging. Plain, unbranded packaging with no logos and no mention of the contents. No signature is required.
- Shipped from Quebec within 24 hours. Orders usually ship the same day or within 24 hours of payment, Monday to Friday. Canada: 3 to 7 days, or 2 to 3 days by Express. USA: 1 to 2 business days by Express. Free shipping on orders over $200.
- Your privacy. We do not sell or share your information with third parties.
- Free seeds with every order, and real people to help: 514-805-2741, Monday to Friday, 11 AM to 6 PM EST.
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10/10/2025
Germé à 100 % plante robuste et bien fourni version auto intérieur pousse très bien bonne odeur à sept semaines 4 pieds et plus de hauteur. Très Satisfait de ces graines.

10/08/2025
Germinated 2 of these guys with the 2 free critical I got with the order. All 4 in soil mid June. Just about mid August now and they are in early flower stage. Fat bastards shot up to 4 feet, sativa structure while the critical are about 18 inches single cola. They are close to 60 days but I'd say at least 6 weeks from bud maturity. I've found that autoflowers seem to stretch well beyond their supposed life span outdoors. Happy so far, will repost after harvest.

19/04/2025
it's been two days since i paid for my order but i haven't heard from them. i've tried to contact them but no answer.
You do realize that this is a long weekend (Easter) and we close till Tuesday Thank You

17/01/2025
3 out of 5 seeds came up , guarantee doesn’t cover if just 2 seeds fail , so I guess I’m out $30 with the shipping. I Hope running lights for the other 3 plants are worth it

22/07/2024
awesome strain i have grown this 6 times 100% of my seeds germinated and gave big bushy plants low stressing gave my amazing harvests super good for migraines and back pain I highly recommend growing this

26/06/2024
I planted 4 seeds. All 4 seeds had no issue other than they all grew very different.
One was one hell of a huge bud surrounded with 5 buds 1/2 the size of center bud.
One had very thick heavy columns all the same size, had 11.
One was thick and bushy with heavy buds down to the bottom. As soon as you opened up the canopy all you could see was buds!
And the last one was thinned out with very abundant thick heavy buds.
All in all, it has been an awesome grow with a great yield, just watch the ph with these babies and they will stay green.
I will be ordering these seeds again soon but will order more than last time. Definitely one of my favorites for sure. This plant grew better than expected and am quite impressed with taste and smell. Potency is spot on as well.
It’s definitely worth growing again!

26/01/2024
Came back to review again after growing a plant that gave 25 SEEDS! This strain is extremely bountiful with seeds and buds. As long as you got the right tools, you're gonna love this strain

09/10/2023
4 out of 4 seeds germinated. No problems through seedling and veg stages. These 4 plants were monsters. This was my 1st time doing LST SCROG method and the buds came out with an abundance of colas and very hard dense nugs. Fiery orange hairs running through purple and olive green buds. The smell and flavor was sweet but gassy af!! Extremely potent strain ,highly recommended.

08/10/2023
4 out 4 seeds germinated. Huge plants with fat dense nuggets with purple and green hues and some orange and red hairs. This was the 1st time using the treylis net to SCROG. This LST method is key if u want a big harvest with big hard nugs. Once I harvested these beauties, I got some killer buds that smoked perfectly and was sweet and gassy af!! Once again ,D, u and your company are the best! Highly recomended!!!

26/09/2023
LOVE love love Fat Bastard. Best I’ve grown yet and super potent.
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