Killer Kush Auto
Cannabis seeds
by Sweet Seeds
Killer Kush Auto Cannabis Seeds by Sweet Seeds
Killer Kush Auto is an autoflowering feminised cannabis seed that brings the legendary OG Kush genetics into an 8-week seed-to-harvest format. Sweet Seeds took an elite OG Kush clone — likely descended from Pakistani Kush crossed with Lemon Thai and ChemDawg — and hybridised it with their 3rd generation autoflowering line. The result is a compact, fast-finishing plant that still delivers the sour pine and fuel aromas OG Kush is famous for, with dense, trichome-coated buds and indoor yields reaching 400–550g/m².
Why Killer Kush Auto Deserves Your Grow Space
OG Kush clones are notoriously fussy. They want specific feeding schedules, they stretch like mad, and they take 9–10 weeks just in flower. Sweet Seeds solved most of that by crossing an elite OG Kush cutting with autoflowering genetics refined over three generations. Killer Kush Auto goes from seed to chop in roughly 56 days — 8 weeks flat. No light schedule changes, no sexing, no photoperiod headaches. Pop the seed, give it 18–20 hours of light from start to finish, and let the ruderalis genetics handle the flowering trigger around day 21–28.
We've seen growers get genuinely impressive results from this one in small spaces. The plant stays between 60 and 100cm, which makes it a solid pick for tents where headroom is limited — think 80x80 or even 60x60 setups. The buds pack on density in the final two weeks, and the trichome coverage is properly visible without a loupe. If you've grown photoperiod OG Kush before and loved the smoke but hated the maintenance, this is the shortcut that actually works.
The one honest limitation: autoflowers don't clone well, and you can't keep a mother plant. Every run starts from seed. For most home growers doing 2–3 cycles a year, that's not a dealbreaker — but if you want to pheno-hunt and keep cuts, a photoperiod OG Kush is the better route. For speed and simplicity, though, Killer Kush Auto is hard to beat in its class.
Aroma and Flavour Profile of Killer Kush Auto
This is where the OG Kush lineage really shines through. Crack open a cured bud and you get that unmistakable blend of sharp pine and sour lemon — the signature OG nose. Underneath that, the ChemDawg heritage adds penetrating fuel aromas, the kind of acrid diesel bite that sticks to your fingers after handling the buds. There's also a subtle sweetness lurking in the background, almost herbal, that rounds things out.
During the final weeks of flower, the smell gets loud. Properly loud. If you're growing indoors without a carbon filter, your entire flat will know about it. We'd rate the odour as high — Sweet Seeds themselves list it the same way. A decent carbon filter and inline fan aren't optional here; they're part of the budget.
Growing Killer Kush Auto: Indoor, Outdoor, Greenhouse
Killer Kush Auto is genuinely flexible on environment. Indoors under 18–20 hours of light, you're looking at yields of 400–550g/m². Outdoors in a decent European summer, expect 60–200g per plant — the wide range depends on sun exposure, pot size, and whether you're in southern Spain or the north of England. Greenhouse growers get the best of both worlds: natural light with weather protection.
The plant responds well to LST (low-stress training) in the first three weeks before the autoflowering trigger kicks in. Topping is riskier with autos — the recovery time eats into your limited vegetative window — so we'd stick with bending and tying. Feed lightly in the first two weeks, ramp up during stretch, and taper off in the final week before harvest.
| Specification | Detail |
|---|---|
| Seed Bank | Sweet Seeds |
| Variety Code | SWS56 |
| Genetics | OG Kush (elite clone) x 3rd gen autoflowering |
| Type | 100% Autoflowering Feminised |
| Seed-to-Harvest | Approximately 8 weeks (55–60 days) |
| Height | 60–100cm |
| Indoor Yield | 400–550g/m² |
| Outdoor Yield | 60–200g per plant |
| Aroma | Pine, sour lemon, diesel fuel, herbal sweetness |
| Odour Level | High |
| Growing Environment | Indoor / Outdoor / Greenhouse |
| Seeds per Pack | 3 |
Killer Kush Auto vs Photoperiod OG Kush
If you're weighing up Killer Kush Auto against a traditional photoperiod OG Kush, the comparison comes down to time versus control. A photoperiod OG Kush takes 9–10 weeks in flower alone, plus 4–6 weeks of veg — so you're looking at 13–16 weeks minimum. Killer Kush Auto does the entire cycle in 8 weeks. That's two full auto harvests in the time it takes for one photoperiod run.
| Feature | Killer Kush Auto | Photoperiod OG Kush |
|---|---|---|
| Total Cycle | ~8 weeks | 13–16 weeks |
| Light Schedule | 18–20h constant | 18/6 veg, 12/12 flower |
| Height | 60–100cm | 100–180cm+ |
| Cloning | Not practical | Yes — keep mother plants |
| Yield Potential | 400–550g/m² | 500–700g/m² |
| Difficulty | Easy | Moderate |
The yield ceiling is a bit lower on the auto, but the speed and simplicity more than compensate — especially if you're running a small personal setup and want multiple harvests per year.
Complete your setup: Killer Kush Auto thrives in a well-ventilated grow tent with a carbon filter to manage the strong OG Kush aroma. A quality LED grow light on an 18/6 or 20/4 schedule will push yields towards that upper 550g/m² range. Pair with fabric pots and a light nutrient mix designed for autoflowers to get the most from these genetics.
How to Grow Killer Kush Auto
- Germinate seeds using the paper towel method or directly in a small pot of moist, airy substrate. Taproots typically emerge within 24–72 hours.
- Transplant seedlings into their final container early — autos don't like root disturbance. A 7–11 litre fabric pot works well for indoor grows.
- Set your light schedule to 18 hours on, 6 hours off (or 20/4 if you want to push growth). Keep this constant from seed to harvest — no need to switch to 12/12.
- Feed lightly for the first 2 weeks. Autoflower seedlings burn easily. Start at quarter-strength nutrients and increase gradually through the vegetative phase.
- Apply low-stress training (LST) during weeks 2–3 by gently bending the main stem and tying it down. This opens up the canopy and encourages multiple bud sites. Avoid topping — the short life cycle doesn't leave enough recovery time.
- Watch for the autoflowering trigger around day 21–28. You'll see pistils forming without any change to your light schedule. Switch to bloom nutrients once stretch begins.
- During the final 2 weeks, the buds will swell and trichomes will develop rapidly. Reduce feeding and flush with plain water for the last 5–7 days before harvest.
- Harvest when trichomes show mostly milky-white with a few amber heads under magnification. Dry in a dark, ventilated space at 18–22°C for 7–10 days, then cure in glass jars for at least 2 weeks.
What to Expect from Killer Kush Auto Buds
The buds come out thick and dense — proper nuggets, not the airy popcorn you sometimes get from lesser autos. The trichome layer is visible to the naked eye, giving the buds a frosted appearance that photographs well if you're the type to document your grows. Break one open and the interior is sticky, resinous, and carries that sharp lemon-pine-diesel scent right through to the grinder.
Sweet Seeds' OG Kush lineage is well-preserved here. The terpene profile leans heavily into the classic OG blend: myrcene, limonene, and caryophyllene dominate, giving you that sour citrus front with earthy, peppery undertones. The ChemDawg influence adds a fuel-forward edge that lingers on the palate. It's a complex smoke — not one-dimensional.
Frequently Asked Questions
Can I top Killer Kush Auto?
You can, but we wouldn't recommend it. Autoflowers have a fixed life cycle of about 8 weeks, so any stress that slows growth directly cuts into your yield. Low-stress training (bending and tying) gives you a more even canopy without the recovery penalty.
How much does Killer Kush Auto yield outdoors?
Outdoor yields range from 60–200g per plant, depending on sun exposure, pot size, and climate. Southern European growers with long, sunny days will hit the upper end. Northern growers in shorter summers should expect yields closer to 60–100g per plant.
Does Killer Kush Auto smell a lot during flowering?
Yes — the odour level is high. The OG Kush and ChemDawg genetics produce strong pine, lemon, and diesel aromas, especially in the final 2–3 weeks. A carbon filter is not optional for indoor grows if discretion matters.
What light schedule should I use for Killer Kush Auto?
18 hours on, 6 hours off is the standard. Some growers run 20/4 for extra growth. Unlike photoperiod strains, you never need to switch to 12/12 — the autoflowering genetics trigger bloom automatically around day 21–28.
Can I clone Killer Kush Auto?
Technically possible, but not practical. Clones from autoflowers inherit the mother's internal clock, so they'll flower at the same time regardless of size — giving you tiny plants with minimal yield. Every run needs to start from seed.
How does Killer Kush Auto compare to other OG Kush autos?
Sweet Seeds used a 3rd generation autoflowering line, which generally means better stability and yield than earlier-generation auto crosses. The 400–550g/m² indoor yield puts it at the upper end for OG Kush autos. The 8-week total cycle is also faster than many competitors that take 9–10 weeks.
What size pot should I use for Killer Kush Auto?
A 7–11 litre fabric pot is the sweet spot for indoor grows. Larger pots (15–20L) can boost outdoor yields but won't make a dramatic difference indoors given the compact 60–100cm height. Plant directly into the final pot to avoid transplant stress.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.