King's Kush Autoflowering CBD
Cannabis seeds
by Greenhouse Seeds
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King's Kush Autoflowering CBD Cannabis Seeds
King's Kush Autoflowering CBD is a balanced hybrid cannabis seed from Greenhouse Seeds that delivers a 1:1 CBD-to-THC ratio — both cannabinoids sitting between 5% and 8%. This isn't a recreational strain. It's bred for growers who want cannabidiol-rich flower without sacrificing yield or speed. Nine weeks from germination to harvest, 600g/m² under lights. That's a serious return for an autoflower with genuine CBD content.
Pack Sizes
| Pack | Seeds | SKU |
|---|---|---|
| Small | 3 seeds | CSGH0209 |
| Standard | 5 seeds | CSGH0210 |
| Grower's Pack | 10 seeds | CSGH0211 |
Start with 3 seeds if you want to test the genetics before committing. The 10-pack makes sense if you're filling a full tent — you'll get more uniform phenotypes to select from, and the per-seed cost drops noticeably.
Why King's Kush Autoflowering CBD Seeds Stand Out
Most CBD-focused strains ask you to choose: either you get decent cannabidiol levels with a sluggish, low-yielding plant, or you get a productive autoflower that barely cracks 2% CBD. King's Kush Autoflowering CBD doesn't make you pick. Greenhouse Seeds crossed their King's Kush genetics with a ruderalis line and stabilised the result at a genuine 1:1 ratio — 5-8% CBD alongside 5-8% THC. That balanced cannabinoid profile means CBD and THC work in tandem rather than one dominating the other.
The autoflowering trait changes the game for growers who don't want to fuss with light schedules. This plant flips to flower on its own internal clock regardless of photoperiod. As long as your ambient temperature stays above 10°C, it'll keep pushing. That makes it viable outdoors in cooler European climates where photoperiod strains would stall or never finish. Indoors, you're looking at a full cycle — seed to chop — in roughly 9 weeks. We've seen growers pull 600g/m² under optimised indoor lighting, which is genuinely impressive for an auto, let alone a CBD auto.
One honest note: the 5-8% THC range means this isn't a zero-THC strain. If you're after something with virtually no THC, this isn't it. But for growers who specifically want that 1:1 interaction between CBD and THC — where both compounds are present in meaningful, roughly equal amounts — this is one of the most productive options on the market right now.
Genetics and Growing Specifications
| Specification | Detail |
|---|---|
| Seed Bank | Greenhouse Seeds |
| Genetics | 40% Sativa / 40% Indica / 20% Ruderalis |
| Seed Type | Feminised Autoflowering |
| CBD Content | 5-8% |
| THC Content | 5-8% |
| CBD:THC Ratio | 1:1 |
| Flowering Type | Autoflowering (non-photoperiod) |
| Seed to Harvest | Approximately 9 weeks |
| Indoor Yield | Up to 600g/m² |
| Minimum Growing Temperature | 10°C |
| Available Packs | 3, 5, or 10 seeds |
Growing King's Kush Autoflowering CBD Seeds
The 40/40/20 sativa-indica-ruderalis split gives this plant a balanced structure — not too stretchy, not too squat. You'll see a central cola with decent lateral branching, which responds well to low-stress training if you start early (within the first 2-3 weeks). Don't top autoflowers aggressively; they don't have time to recover the way photoperiod plants do. A gentle bend-and-tie approach gets more light to lower bud sites without stressing the plant into stunting.
- Germinate seeds using the paper towel method or directly in a small pot of moist, airy soil. Taproots usually appear within 24-72 hours.
- Plant the germinated seed 1-2cm deep in your final container. Autoflowers don't like transplanting — root disturbance costs you days you can't afford in a 9-week cycle. Use your final pot from the start. 11-15 litre fabric pots work well.
- Keep the seedling under 18-20 hours of light per day. Autoflowers don't need a dark period to trigger flowering, so more light hours means more photosynthesis and bigger yields. An 18/6 or 20/4 schedule is standard.
- Maintain temperatures between 20-26°C during the vegetative phase. The plant tolerates down to 10°C, but growth slows considerably below 18°C. Humidity at 50-60% for veg, dropping to 40-50% during flower.
- Begin light feeding around week 2. Autoflowers are sensitive to overfeeding — start at half the manufacturer's recommended dose and increase gradually. Switch to bloom nutrients when you see the first pistils, typically around week 4-5.
- Watch for the pre-flower stretch around weeks 3-4. The plant may double in height over 10-14 days. This is your last window for training adjustments.
- Flowering runs from roughly week 4 through week 9. Monitor trichomes with a jeweller's loupe — you're looking for mostly cloudy trichomes with a few amber ones. The 1:1 CBD:THC ratio holds best when you don't let it overripen.
- Harvest, dry in a dark room at 18-20°C and 55-60% humidity for 7-10 days, then cure in glass jars for at least 2 weeks. Proper curing makes a noticeable difference to the final terpene profile and smoothness.
What 600g/m² Actually Looks Like
Numbers on seed packets are optimistic by nature — we get that. But 600g/m² from an autoflower isn't fantasy if you're running a proper indoor setup. That figure assumes optimised conditions: good lighting (400-600W HPS equivalent or a quality LED panel), adequate airflow, proper nutrition, and a grower who doesn't panic-water every day. In a 1m² tent with 4-6 plants under a 20/4 light schedule, you can realistically hit 400-600g depending on your experience level.
Outdoors, expect less — autoflowers generally yield 50-150g per plant outside, depending on your climate and how much direct sunlight they get. The upside is that you can run multiple cycles in a single outdoor season because the 9-week turnaround is so fast. Plant in May, harvest in July, plant again, harvest in September. That's two full runs before autumn hits.
The weight feels solid in the hand once dried and cured — dense, resinous buds with a compact indica-influenced structure. The sativa genetics keep the buds from becoming too rock-hard, so airflow through the colas is decent and mould risk stays manageable. You'll notice an earthy, slightly sweet aroma during flower, with hints of pine from the Kush lineage.
Running these seeds indoors? Pair them with a complete grow tent kit that includes lighting, ventilation, and a carbon filter — everything you need to hit that 600g/m² target. For outdoor growers, a soil moisture meter takes the guesswork out of watering autoflowers, which are less forgiving of overwatering than photoperiod plants.
Who Should Grow King's Kush Autoflowering CBD
This strain fills a specific gap. If you're growing for personal CBD-rich flower and you want a plant that doesn't demand a separate veg and flower room, photoperiod timers, or 14+ weeks of patience, King's Kush Autoflowering CBD is one of the best autoflowering CBD seeds available. The 1:1 ratio is the key differentiator — plenty of CBD autos exist, but most skew heavily toward CBD with trace THC. Here, both cannabinoids are present in equal, meaningful concentrations.
Compared to a photoperiod CBD strain like CBD Critical Cure from Barney's Farm, you're trading some control over plant size and slightly higher potential yields for a dramatically faster turnaround and zero light-schedule management. For growers with limited space or limited patience, that trade-off makes sense every time. We'd pick King's Kush Auto CBD over most photoperiod CBD strains for a first grow — the forgiveness of autoflowering genetics combined with Greenhouse Seeds' stabilised 1:1 ratio gives you a reliable result without needing years of growing experience.
The one thing to watch: don't expect bag-appeal buds dripping with trichomes like a high-THC strain. CBD-dominant and 1:1 varieties tend to produce slightly less visible resin, even though the cannabinoid content is genuinely there. Judge by lab results or effects, not by how frosty the nugs look under your phone torch.
Frequently Asked Questions
Will King's Kush Autoflowering CBD get you high?
With 5-8% THC and a 1:1 CBD:THC ratio, the psychoactive effect is noticeably mild compared to recreational strains. The equal CBD content moderates the THC, so most people report a gentle, functional feeling rather than anything intense. This strain is bred for its balanced cannabinoid profile, not for potency.
How long does King's Kush Autoflowering CBD take from seed to harvest?
Approximately 9 weeks from germination to harvest. That's the full cycle — no separate vegetative and flowering phases to manage. Some phenotypes may run a few days longer, but 9 weeks is the reliable benchmark under standard indoor conditions.
Can I grow King's Kush Autoflowering CBD outdoors in a cool climate?
Yes. The ruderalis genetics give this plant hardiness down to 10°C, and the autoflowering trait means it doesn't depend on shortening daylight hours to start flowering. Northern European growers can run it outdoors from late spring through summer without issues. Just don't expect the same yields as a controlled indoor environment.
What's the difference between autoflowering and photoperiod CBD seeds?
Photoperiod seeds need a change in light schedule (typically 12/12) to trigger flowering. Autoflowering seeds flower based on age, regardless of light. King's Kush Auto CBD finishes in 9 weeks total, while a photoperiod CBD strain might need 8-10 weeks of flowering alone, plus 4-6 weeks of veg beforehand. Autos are faster and simpler; photoperiods offer more control over plant size.
Is 600g/m² realistic for an autoflowering strain?
Under optimised indoor conditions — strong lighting, proper nutrition, 18-20 hours of light daily — yes. Most growers land between 400-600g/m² depending on experience. Outdoors, expect 50-150g per plant. The 600g figure is Greenhouse Seeds' benchmark for ideal conditions, not a guaranteed minimum.
Do I need to change the light schedule for autoflowering seeds?
No. Run 18-20 hours of light from seed to harvest. Autoflowers flower on their own timeline regardless of photoperiod. Some growers run 24-hour light, but 18/6 or 20/4 gives the plant a rest period and saves on electricity without meaningfully reducing yield.
What does a 1:1 CBD:THC ratio mean in practice?
It means the plant produces roughly equal amounts of CBD and THC — in this case, both between 5% and 8%. The two cannabinoids interact with each other; CBD is thought to modulate the effects of THC, resulting in a more balanced experience. This ratio is specifically sought after by growers who want both cannabinoids present in meaningful concentrations rather than one dominating.
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.