Black Jack by Nirvana Seeds – A Fast-Flowering Hybrid Bursting with Citrus Power and Mental Energy
Introduction:
Black Jack by Nirvana Seeds is a vigorous and flavour-packed hybrid that blends the best traits of Black Domina and Jock Horror. Known for its bold aroma, potent effects, and quick flowering time, this sativa-leaning strain is ideal for those who want a stimulating, energising high without the heaviness of a full indica. With its manageable height and impressive resilience, Black Jack is perfect for discreet indoor setups and short outdoor seasons.
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Strain Information:
Strain Name: Black Jack
Strain Breeder: Nirvana Seeds
Lineage: Black Domina x Jock Horror
Genetics: Mostly Sativa
Seed Type: Feminised
Flowering Type: Photoperiod
Flowering Time: 8–9 weeks
Effect: Focused, uplifting, motivating, mentally stimulating
Aroma: Earthy, citrusy, lemon zest with spicy undertones
Taste: Pungent, dank, citrus with a sharp and zesty finish
Height: Medium, compact and discreet
Yield: 400–500 g/m² indoors
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Strain Description:
Black Jack is a dynamic F1 hybrid created by crossing the sedative powerhouse Black Domina with the energetic Jock Horror. The result is a perfectly balanced plant that delivers on both yield and effect. With THC levels ranging from 16–20% and CBD content up to 1%, Black Jack produces large, resin-covered buds in a short flowering time of 8–9 weeks. Her effects are immediate and cerebral—ideal for productivity, social activity, or creative focus. She’s especially well-suited for those looking for a strain to enhance daily routines without the risk of couch-lock.
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Growing Information:
This hybrid thrives in indoor environments and compact outdoor spaces thanks to her medium height and low-stretch nature. She features tight internodal spacing, bushy structure, and is highly responsive to training methods. Growers will appreciate her high resistance to environmental stress, including cooler temperatures and humidity—making her a solid choice for less predictable climates. Her low profile and short flowering cycle make Black Jack a discreet and efficient cultivar for stealthy grows.
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Strain Flavour and Aromas:
One of Black Jack's standout features is her complex and powerful aroma. A bold combination of dank earthiness, sharp citrus, lemon peel, and warm spice fills the room during flowering. When smoked, she delivers a rich, lip-smacking flavour of citrus and funk, followed by a lingering zesty aftertaste. Her terpene profile makes her a treat for flavour chasers and connoisseurs alike.
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Strain Lineage:
Black Jack inherits its punch and compact size from Black Domina, a legendary indica known for resin production and resilience. From Jock Horror comes the energetic sativa influence, extending the high into a more uplifting, mentally engaging experience. The cross is perfectly balanced to deliver strength, flavour, and performance in one versatile plant.
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Strain Summary:
Black Jack by Nirvana Seeds is a flavourful, fast-finishing hybrid that brings together energising effects and earthy citrus richness. Ideal for daytime use, this strain keeps the mind sharp while offering a discreet and resilient plant structure. For growers who value rich flavour, quick results, and focused highs, Black Jack is a top-tier choice that combines old-school genetics with modern growing appeal.
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.