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Black Jack
Feminized
Black Jack blends Black Domina x Jack Herer into a stable hybrid. You get pine and spice aroma with a focused, uplifting high and gentle body relaxation. Growers find moderate difficulty and steady yields when they use topping and low stress training. MasterSeeds supplies feminized seeds suited for tents and temperate outdoor gardens across Canada.
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STRAIN PROFILE
Complete Cannabis Strain Specifications
| Trait | Value |
|---|---|
| Type | Hybrid |
| THC | 18-22% |
| CBD | <1% |
| Grow Difficulty | Moderate |
| Flowering Time | 8-10 |
| Yield | Indoor 400-500 g/m2; Outdoor 400-800 g/plant |
| Height | Indoor 80-140 cm; Outdoor 180-200 cm |
| Environment | Indoor/Outdoor |
| Effects | Uplifting focus, Calm body relaxation, Clear headspace |
| Flavors | Earthy, Pine, Spicy sweet |
| Genetics | Black Domina x Jack Herer |
| Climate | Temperate |
Black Jack Strain Information and Characteristics
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Strain Type:
Black Jack is a balanced hybrid bred for mixed effects. You get both sativa energy and indica calm.
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THC Content:
THC typically ranges between 18% and 22% in stable grows. You should adjust doses if you use stronger batches.
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CBD Content:
CBD levels stay low, usually under 1%. That low CBD profile makes it best for symptom relief that responds to THC.
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Grow Difficulty:
Growing difficulty rates as moderate for most setups. You need basic pruning and nutrient control to get steady results.
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Flowering Time:
Flowering takes about 8 to 10 weeks under a 12/12 cycle. Outdoors expect harvest in early October in temperate zones.
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Expected Yield:
Indoor yields reach about 400 to 500 g per square metre under good conditions. Outdoors plants produce 400 to 800 g per plant in long seasons, including BC gardens.
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Plant Height:
Plants stay medium tall indoors, often 80 to 140 cm. Outdoors they reach 180 to 200 cm in full sun.
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Growing Environment:
Black Jack suits both indoor and outdoor grows. You will get reliable resin and structure in greenhouses and tents.
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Expected Effects:
Users report uplifting focus followed by a calm body feeling. You should expect clear headspace with gentle relaxation.
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Genetic Lineage:
Black Jack traces to Black Domina x Jack Herer genetics. That cross yields balanced cannabinoids and aromatic terpenes.
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Seed Type:
These seeds are supplied as feminized genetics for predictable female plants. MasterSeeds lists them for home growers and small producers.
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Preferred Climate:
Best climate is temperate with warm days and cool nights. Southern Canadian regions and coastal areas suit outdoor grows.
Frequently Ask Questions
Everything you need to know about this strain.
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Questions & Answers
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Q: My seedlings stretch, what should I do?
A: Raise lights or lower room temperature, add a gentle fan to strengthen stems.
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Q: How do I increase resin production?
A: Reduce flush length and use a bloom-focused PK in final weeks. Short cool nights before harvest often boost trichome density.
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Q: I have aphids outdoors, how to manage?
A: Use neem oil at dusk, introduce ladybugs, and remove affected leaves promptly.
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Q: Which training gives best yield?
A: Early topping plus LST create an even canopy and steady colas.
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Q: When is best harvest window?
A: Harvest when trichomes show 70 to 90% cloudy and 20 to 30% amber for balanced effects.
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