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Black Jack Strain Review

Black Jack Strain Picture

Are you looking for a strain that seamlessly blends potency and flavor? Black Jack is a worthy candidate. It’s proof that picking the right parent strains can make or break a cannabis cultivar.

This strain has quickly solidified its place in the world of weed. Its rise to fame is marked by a rich background and the perfect mix of sweet yet earthy notes and relaxing yet euphoric effects.

Ready to learn more? Continue reading for the complete Black Jack strain information. We explore its lineage, taste, smell, effects, and recommended growing techniques.

Black Jack Strain History & Genetics

Black Jack is an indica-dominant hybrid that combines two renowned parent strains. Its genes consist of around 70% indica and 30% sativa.

Origins of Black Jack

The Black Jack weed strain was originally bred by Sweet Seeds. It’s a cross between Black Domina and Jack Herer. Some say the latter parent is actually Jock Horror, but they might just be confusing it with the similar Blackjack strain from Nirvana Seeds.

The moniker is an homage to its ancestors, combining the first part of each parent’s name.

Parent Strains

Here’s a brief overview of what each parent strain passes on:

  • Black Domina is a potent indica-dominant variety that contributes relaxing and calming qualities. Its ancestors include Northern Lights, Afghani, Hash Plant, and Ortega.
  • Jack Herer is a sativa-dominant strain that adds an uplifting and energizing touch. It contains a fascinating lineage of Haze, Shiva Skunk, and Northern Lights.

Black Jack has also been involved in the creation of its own children strains, most notably Jackalope and Sweet Cheese.

Genetic Variations

The Black Jack marijuana strain generally features a consistent genetic makeup, but variations are possible. They typically occur with different growing methods and environmental conditions.

You may encounter subtle differences in the taste, smell, and effects of various phenotypes. These variations provide a comprehensive experience of the Black Jack family.

Black Jack Auto-Flowering Cannabis Seeds | Black Jack Strain | The Seed Fair

Black Jack Feminized Seeds

THC: 23%
Yield: 250 Grams per plant
Flowering Time: 8 – 10 Weeks


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Sensory Profile

Black Jack is more than just a good-looking cultivar. With a terpene cocktail that consists of terpinolene, ocimene, pinene, myrcene, and caryophyllene, you can bet that this strain is an olfactory and gustatory delight.


Black Jack buds boast a beautiful combination of deep green colors intertwined with vivid orange pistils. Some phenotypes may exhibit a subtle purple tint. Expect thick, dense buds drenched in trichomes and dripping with resin.


The scent is mostly sweet and hints at fresh fruits. However, it also emits undertones of pine, earth, and wood. Some users also pick up on light citrus notes.


The medley of flavors carries through to the taste. Expect a rich infusion of spicy, peppery, herbal, and zesty notes with each inhale. The exhale is sweet and balances out the more pungent elements.

Black Jack Strain Plant

Potency & Cannabinoid Content

Potency plays a crucial role in your cannabis experience. High THC levels translate to more powerful sensations, while lower concentrations have the opposite effect. We recommend always taking a moment to check out the numbers.

THC & CBD Levels

Black Jack features a moderately high THC level that ranges from 16-24% with minimal CBD. It’s a great strain for those seeking a potent experience.

Potency Considerations

Since gene variations are possible, it’s important to check the specific THC info of each batch. Novice consumers should stick to lower concentrations and gradually work their way up to prevent any overwhelming sensations.

Grow your own Black Jack Strain

  • HARVEST TIME October
  • YIELD (INDOOR) 650G/M²

Effects, Benefits & Uses

Although it’s categorized as an indica-dominant hybrid, Black Jack manages to strike a harmonious balance between mental and physical stimulation. Its blended effects make it a popular pick for recreational and medicinal users.

Cerebral & Physical Effects

The initial effects bring a sense of clarity, upliftment, and euphoria. These cerebral sensations are influenced by the Jack Herer heritage and promote focus and creativity.

As the high progresses, you begin to feel the calming, relaxing body buzz from the Black Domina side. It promotes physical tranquility without being sedative or causing couch-lock.

Medical Benefits

Black Jack has earned a reputation for its potential medical benefits. Its well-rounded effects, rich cannabinoid content, and mild analgesic properties make it suitable for a range of symptoms.

Here are some of its reported benefits for medical marijuana users:

  • It may ease depression, stress, and anxiety.
  • It may offer relief from chronic pain and inflammation.

Potential Side Effects

The consumption of any cannabis strain often results in minor side effects like a dry mouth and red eyes. Luckily, these issues are easily treated with water and eye drops.

Consumers with a low THC tolerance should start off with small amounts before increasing their dosage. Excess consumption may lead to adverse reactions like paranoia, anxiety, or dizziness.

Cultivation Insights

Growers of all levels can exercise their green thumb with this show-stopping strain. Its needs are manageable, and it doesn’t have any challenging susceptibilities.

Indoor vs. Outdoor Growth

Black Jack can be grown in various setups, including indoors and outdoors. A controlled environment is usually your best bet, unless you live in an area with a suitable climate.

Indoor setups offer greater control over each of the environmental elements, including temperature and humidity, and deliver more predictable results.

Outdoor cultivation is all-natural and allows your plants to grow the way nature intended, but it poses a higher risk of pests, diseases, and other external threats.

Growing Tips

It’s crucial to give your plants the proper care and attention from seed to harvest. Here are some expert tips for growing Black Jack:

  • Ensure your crops have adequate ventilation to prevent mildew and mold.
  • Maintain stable humidity and temperature levels throughout each growing stage.
  • Use a well-balanced soil mix with excellent drainage. The addition of coco coir or perlite can improve aeration.
  • Only water your weed plants when the top inch of soil feels dry to prevent water-logging.
  • Use high-quality LED lights for the veg stage and HPS lights during flowering.

Yield & Flowering

It takes around 8-10 weeks to cultivate these marijuana crops from seed. They’re ready to harvest once they complete an 8-10 week flowering period. Outdoor growers typically collect their buds in October.

When grown indoors, the average yield is 14-17 oz./m². Outdoor setups deliver 17-24 oz./plant.

Conclusion & Recommendations

Black Jack is a testament to the art of intentional cannabis breeding. By combining two heavy-hitting strains, breeders produced a powerful hybrid with remarkable qualities.

It pairs physical relaxation with mental uplift and offsets sweet citrus notes with spicy hints, delivering a well-balanced smoke.

Consume this hybrid cannabis strain in small doses to make the most of the cerebral effects. Higher amounts often induce more physical sensations. It’s suitable for creative endeavors, relaxing on the couch, or enjoying your favorite hobby.

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