Black Jack Auto by Nirvana Seeds – Energising Citrus-Infused Hybrid with Stealth and Speed
Introduction:
Black Jack Auto by Nirvana Seeds is a rapid, resilient autoflowering hybrid that blends the best of sativa clarity and indica stability in a compact, low-profile package. By crossing the original Black Jack (Black Domina x Jock Horror) with Ruderalis, Nirvana created a potent and flavour-rich cultivar that delivers focused, upbeat effects and finishes in record time—perfect for growers needing speed, discretion, and mental stimulation.
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Strain Information:
Strain Name: Black Jack Auto
Strain Breeder: Nirvana Seeds
Lineage: Black Jack (Black Domina x Jock Horror) x Ruderalis
Genetics: Mostly Sativa
Seed Type: Autoflowering Feminised
Flowering Type: Autoflower
Flowering Time: 8–9 weeks from seed
Effect: Focused, motivated, energising, uplifting
Aroma: Pungent, earthy with citrus, spice, and lemon
Taste: Dank and bold citrus with a spicy kick
Height: Medium, low-profile structure
Yield: Medium–high (varies by setup and environment)
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Strain Description:
Black Jack Auto retains the stimulating, clear-headed high of its photoperiod parent while offering the convenience of autoflowering genetics. With THC levels reaching 16–20% and up to 1% CBD, this sativa-dominant hybrid produces large, resin-covered buds in just 8–9 weeks. The effect is mentally uplifting, perfect for daytime productivity or creative bursts. It’s particularly beneficial for those dealing with low mood or lack of motivation, providing a noticeable mental boost without heavy sedation.
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Growing Information:
This strain is well-suited to discreet grows thanks to its medium height and minimal stretch. It thrives in both indoor and outdoor conditions and handles cool, damp climates well—making it ideal for growers in shorter summer regions. Her sturdy, bushy form is inherited from Black Domina, and she flourishes with minimal training. With a fast lifecycle and strong resistance to stress, Black Jack Auto is a great choice for growers looking to harvest quality buds quickly and efficiently.
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Strain Flavour and Aromas:
Black Jack Auto brings an unforgettable terpene profile of pungent, spicy citrus and deep earth. Expect a robust nose during flowering with zesty lemon and herbal spice notes. On the palate, the smoke is dense and rich, coating the mouth in bold citrus and dank flavours with a long-lasting finish that leaves you wanting more.
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Strain Lineage:
By adding Ruderalis to the original Black Jack—born from Black Domina's heavy resin and Jock Horror's energetic high—Nirvana created a compact autoflower that still hits hard. The sativa side delivers mental clarity and focus, while the indica lineage ensures reliability and easy structure.
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Strain Summary:
Black Jack Auto by Nirvana Seeds is a top-tier autoflower for growers wanting an energising smoke, quick turnaround, and discreet growth. With bold citrus flavour, motivating effects, and solid resilience, this strain shines both indoors and out. Ideal for morning use or those with busy lifestyles, it’s a great addition for growers chasing classic taste, cerebral clarity, and efficient harvests.
Disclaimer:All seeds sold at Breeders Collective are strictly intended as souvenirs and for preservation purposes. We do not condone or encourage breaking any laws regarding cannabis. It is your responsibility to research and adhere to the laws in your jurisdiction regarding the purchase, possession, and use of cannabis seeds.