Black Jack combines Black Domina’98 with Jack Herer in an evenly balanced 50% Indica and 50% Sativa hybrid. You get vigorous growth, dense resinous flowers, bold effects, expressive aroma, and memorable flavor.
Sweet Seeds created this Feminized photoperiod variety from elite clones of both parent lines.
Outdoors, plants can become heavily branched giants under strong sun and suitable conditions. Production can reach 500–700 g (17.6–24.7 oz) per plant outdoors, while indoor yields can reach 500–600 g/m² (16.4–19.7 oz/10.8 ft²).
We really like this strain because its balanced genetics combine strong vigor, active effects, and a layered aromatic profile. Black Jack has also collected 10 cannabis-cup awards across several competitions.
Effects
With 16–21% THC and around 1% CBD, the experience is described as psychoactive and stimulating. It leans toward happiness, energy, and mental activity rather than a quiet, sleepy mood.
The effect feels like somebody opening the curtains inside your head while a warm current starts running through the body. Its balanced genetics support an active personality without sacrificing depth.
We think that contrast is its real charm: bright stimulation, positive energy, and a layered sensory finish wrapped into one proven hybrid.
Flavor
The first impression is bright. Citrus cuts through the deeper Haze character before incense, wood, earth, pine, and spice start showing themselves.
The flavor moves like smoke through an old wooden room, carrying citrus peel, incense, and forest air behind it. The citrus keeps things lively, while woody and earthy undertones bring depth.
Pine adds freshness, while spice leaves a sharper finish. Black Jack combines citrus, incense Haze, wood, earth, pine, and spices into a complex profile that refuses to sit still.
Black Jack Characteristics
| Strain type | Feminized photoperiod |
| Genetics | Black Domina’98 x Jack Herer |
| Indica/Sativa | 50% Indica / 50% Sativa |
| THC | 16–21% |
| CBD | 1% |
| Effect | Psychoactive, stimulating, happy, energetic |
| Flavor | Citrus, incense Haze, wood, earth, pine, spices |
| Indoor yield | 500–600 g/m² (16.4–19.7 oz/10.8 ft²) |
| Outdoor yield | 500–700 g/plant (17.6–24.7 oz/plant) |
| Flowering time | 9 weeks |
| Height | Up to around 300 cm (9.8 ft) outdoors under optimal conditions |
| Structure | Vigorous, well-branched, balanced hybrid structure |
| Bud appearance | Large, dense, resinous flowers |
FAQ
Is Black Jack seeds Indica or Sativa?
Black Jack is evenly balanced at 50% Indica and 50% Sativa.
What terpenes does this strain have?
The supplied breeder information does not identify individual terpenes. It describes a complex Haze-led aromatic profile with citrus, incense, wood, earth, pine, and spice notes.
Is this strain good for beginner growers?
The breeder confirms strong hybrid vigor and good adaptation to indoor cultivation, but does not provide an official beginner difficulty rating.
How to grow Black Jack seeds?
Indoors, provide suitable artificial lighting and controlled conditions through its nine-week flowering period. Outdoors, strong sunlight and good substrate can support very large, productive plants.
How much can Black Jack produce?
Under suitable conditions, reported yields reach 500–600 g/m² (16.4–19.7 oz/10.8 ft²) indoors and 500–700 g (17.6–24.7 oz) per outdoor plant.
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