Black Jack

The information presented on this page is intended solely for descriptive purposes and should not be considered a review or medical advice. The actual effects of the cannabis strain may vary. It is important to use marijuana responsibly. We recommend that you consult a healthcare professional before adding cannabis to your health regimen.

Quick info

Dominant Terpenes
Caryophyllene, terpinolene, pinene, myrcene
Helps With
Pain, stress, appetite loss
Ease of Growing
When to Use






Sativa Indica

Effects & Usage



Black Jack, an indica-dominant hybrid with a Sativa/Indica ratio of 30:70, is a robust and impactful strain. Its THC levels span a wide range, usually falling between 14% and 24%, though some phenotypes can reach up to 25%. This range makes Black Jack a versatile choice, capable of delivering a mild to strong high.

This strain results from crossing the infamous Jack Herer and Black Domina strains, which contributes to its potency and popularity.


The onset of Black Jack’s embrace is swift and sure, inviting a sense of cerebral euphoria that can sharpen focus without the hangover of overstimulation. Its Jack Herer heritage delivers an uplifting mental clarity, while the Black Domina’s lineage ensures that the body is not left behind in relaxation.

The effects of this strain are well-balanced, combining an uplifted head high with a relaxing body buzz, making it suitable for various users. While on the lower end, the Sativa traits are appealing enough for you to notice and exercise some creativity.

The cerebral high is short-lived – you may want to ensure you are done with the bulk of your responsibilities for the day before toking. As such, Black Jack is best recommended for afternoon/evening use.


Black Jack is celebrated for its medical benefits, as it effectively assists in alleviating stress, managing chronic pain, and helping sleep better. Its potent THC content also makes it a popular choice for patients seeking relief from symptoms of depression, anxiety, and loss of appetite, offering a well-rounded therapeutic experience.

Side effects

Though its effects are many, caution is advised to avoid the dry mouth, dizziness, and dry eyes accompanying its use – a reminder that even the best hands should be played wisely.

Taste & Smell


A sensory delight, Black Jack is a visual feast with dark, green leaves and amber hairs. Its appearance is a prelude to the complex symphony of sweet, woody, and spicy flavours that await.

The aroma is a rich tapestry of earth, pine, and a subtle hint of lemon, a fragrant reminder of its diverse genetic heritage.



Black Jack’s parentage boasts a robust lineage; the Sativa-dominant Jack Herer – with its Haze influence, meets the Indica-rich Black Domina – a mosaic of Northern Lights, Hashplant, and an Afghani landrace. Sweet Seeds bred the cultivar.

Growing conditions

As for cultivation, Black Jack plays a fair game. It flourishes indoors and out, asking only for the usual gardener’s vigilance. It’s not demanding of space, preferring a moderate bushy growth that can yield 500-600 grams per square meter. Whether you’re a seasoned grower or experienced, the plant is not too challenging to cultivate.