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Black Jack Auto grows fast, hits hard, and smells like a dessert that fights back. Dense buds, fruity terps, and a surprisingly easy grow make this a no-brainer for any setup.
Black Jack Auto grows fast, hits hard, and smells like a dessert that fights back. Dense buds, fruity terps, and a surprisingly easy grow make this a no-brainer for any setup.
Black Jack Auto doesn’t just play its hand. It stacks the deck. This autoflowering powerhouse blends the sweet cerebral charge of Jack Herer with the deep, resin-heavy calm of Black Domina, then throws in a Ruderalis twist so it can do its thing without waiting for your lighting schedule.
Expect dense, sparkling buds with a funky-sweet aroma: berry jam meets incense and spice. It’s the kind of scent that makes opening the grow tent feel like cracking a treasure chest. Whether you're winding down, tuning in, or just chasing a bit of headspace, Black Jack Auto hits with a creative, uplifting spark that tapers off into a calm, contented hum.
This one’s not just for the connoisseurs either. It’s easy to handle, hard to forget, and ready to deliver premium results with minimal fuss. No bluff. Just bold genetics that work.
If you're looking to fine-tune your grow or push for maximum harvests, take a peek at the Black Jack photoperiod version.
Black Jack Auto springs from legendary lineage. Jack Herer on one side, Black Domina on the other. That gives it a rare balance of mental clarity and physical ease, all turbo charged by autoflowering Ruderalis genetics. Originally crafted for growers who wanted quality without compromise or complexity, this strain quickly built a cult following.
Smooth but punchy. You get that clean Jack Herer head rush, bright, focused, a little buzzy, paired with a soothing body vibe courtesy of its indica-dominant roots. The flavor is a wild ride: blueberry, a hint of sour spice, then a smoky incense finish that lingers like a good memory. Creative types love it. So do chill seekers. It's a multitasker.
With THC levels reaching 23%, Black Jack Auto brings the fire. The 1% CBD adds just enough edge softening to make the high smooth rather than sharp. It’s potent but not overwhelming, ideal for late afternoons, creative sessions, or unwinding without crashing.
This strain is a terp bomb. Nerolidol and terpinolene give it that floral-meets-forest aroma, while limonene and alpha-pinene keep things bright and fresh. There’s also a spicy twist from eugenol and gamma-terpinene. It smells exotic, tastes rich, and hits smooth.
Black Jack Auto is refreshingly beginner friendly. It’s tough, forgiving, and handles fluctuations like a champ. Short on space? No worries. This plant stays compact, reaching between 70 cm and 110 cm indoors, and the same 70 cm to 110 cm outdoors. Despite its modest height, it still delivers thick, resin-coated buds that make trimming day a pleasure.
Thrives in tents, greenhouses or out in the open. Take your pick. Indoors, it's easy to control and doesn’t stretch much. Outdoors, it adapts well to temperate, Mediterranean, or tropical climates and won’t draw too much attention. Stealthy, sturdy, and surprisingly productive for an auto.
Expect a flowering time of just 42 to 49 days. Indoors, yields hover around 400 grams per m2 to 550 grams per m2, while outdoors you can expect anywhere from 40 grams per plant to 250 grams per plant, depending on your conditions. Not a record breaker, but it’s fast, reliable, and generous for its size.
If you’re after an auto that performs like a photoperiod heavyweight, Black Jack Auto deserves a spot in your grow. Fast, flavorful, and just the right amount of punchy, it delivers a smooth ride from seed to stash. Grab your seeds now and let this classic hybrid do the heavy lifting.
Lineage | Jack Herer X Black Domina |
Flowering Type | autoflower |
Gender | feminized |
Genotype | Sativa dominant |
Ratio | 70 % Sativa / 10 % Indica / 20 % Ruderalis |
Grower Profile | Beginner |
THC | Up to 23.00% |
CBD | Up to 1.00% |
Yield Indoor | Up to 550 gr./m2 |
Yield Outdoor | Up to 250 gr./plant |
Height Indoor | Up to 110 cm |
Height Outdoor | Up to 110 cm |
Climate | Temperate, Mediterranean, Tropical |
Flowering Time | 42 to 49 days |
Flavors | Berry, Blueberry, Incense, Sour, Spicy, Sweet |
Terpines | Nerolidol, Trans Nerolidol, Delta 3 Carene, Terpinolene, Alpha Pinene, Limonene, Eugenol, Alpha Phellandrene, Cymene, Gamma Terpinene |
Effects | Calming, Creative, Energetic, Focused, Relaxed, Uplifting |
it does live up to its claims that it's fast flowering.. grew 5 of them outdoors and I got about 150-200g harvest each plant.. that's a healthy yield right there.. I'm buying more seeds here.. nice quality I got so far.. i highly recommend!
Tried these RBlack Jack autos for the first time, and overall, I'm happy with how they turned out. First, delivery was fast, second, seeds sprouted well, and the plants were pretty easy to manage. Thanks!
This was a very good grow. 226.8 grams dried off 1 plant. It grew frosty, and dense. Great potency and aroma. I included photos from harvest day, and when dried. I am also on YouTube. My channel is Mr. Sour's 420 growing adventures. If you would like to see footage of harvest, and final weight. This was a excellent strain. Thank you Weed Seeds Express
3 found this usefulOrdered my Black Jacks., and they arrived faster than expected. everybody loves fast shipping, ofc LOL. The delivery was quick, and the seeds were well-packaged. kudos WSE!
What does Black Jack Autoflower taste like?
Sweet citrus and floral flavors with incense/skunky undertones, spicy-earthy notes, and a hint of pine.
What are the effects of Black Jack Autoflower?
Uplifting, cerebral and creative with a happy buzz that settles into gentle body relaxation; a balanced hybrid feel.
How long does Black Jack Autoflower take from seed to harvest?
Usually 10–12 weeks from seed to harvest. As an autoflower, no light schedule switch is required.
What yield can I expect from Black Jack Autoflower indoors and outdoors?
Indoors: around 350 grams per m2–450 grams per m2 under good conditions. Outdoors: roughly 50 grams per plant–150 grams per plant, depending on climate and care.
How tall does Black Jack Autoflower grow?
Compact stature: about 60 cm–100 cm indoors; around 80 cm–120 cm outdoors.
Is Black Jack Autoflower easy to grow and suitable for beginners?
Yes. It’s resilient and beginner-friendly. Keep feeding light to moderate, ensure good airflow, and run 18/6 or 20/4 lighting.
What are the genetics of Black Jack Autoflower?
It’s the autoflowering version of Black Jack (Jack Herer x Black Domina) crossed with ruderalis for automatic flowering.
What THC and CBD levels does Black Jack Autoflower have?
THC typically ranges from 18–22%, with low CBD (usually under 1%).
Can I grow Black Jack Autoflower indoors and outdoors? What conditions are ideal?
Yes, it performs well in both. Ideal temperatures are 20 °C–26 °C; avoid frost. Aim for 40–60% RH during bloom and plenty of airflow.
What light schedule works best for Black Jack Autoflower?
Run 18/6 or 20/4 from seed to harvest. 24/0 is possible but a dark period aids recovery. 12/12 is not recommended for autos.