Premium Colombian Jack Seeds: The Award-Winning 28% THC Sativa Powerhouse
If you are looking to buy Colombian Jack Feminized By Kannabia Seed Company seeds, you are securing one of the most prestigious, award-winning Sativa-dominant hybrids on the modern market. Taking home the Best Sativa prize at Expogrow 2018, this masterpiece was forged by crossing the legendary Nebula with the vigorous Black Jack. These premium cannabis seeds produce an absolute giant of a plant that boasts an astonishing 28% THC concentration. Ideal for experienced cultivators seeking a high-yield strain with elite resin production, Colombian Jack delivers a transcendent, creative high and a sophisticated citrus-incense terpene profile that extraction artists and connoisseurs will deeply appreciate.
Key Technical Specifications
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Genetics / Lineage: Nebula x Black Jack
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Strain Type: Sativa-Dominant Hybrid (70% Sativa / 30% Indica)
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THC Content: Up to 28.00%
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Indoor Flowering Time: 68–70 days (Approx. 9.5–10 weeks)
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Indoor Yield: 450g – 500g/m²
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Outdoor Harvest Window: Late October
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Outdoor Height: Can exceed 3 meters (9.8+ feet)
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Aroma & Flavor: Elegant lime, fresh grapefruit, cathedral incense, and sandalwood oil
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Primary Effects: Explosive creative energy, soaring cerebral uplift, and soothing physical relaxation
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Awards: 1st Place Best Sativa (Expogrow 2018)
Cultivation Profile: Towering Growth & Elite Resin Production
While Colombian Jack demands a bit of patience and cultivation experience, the generous rewards are well worth the wait. During its 68 to 70-day flowering period, this high-yield strain exhibits an initial Indica-style development before completely unleashing its explosive Sativa vigor. Indoors, height management is crucial; growers should consider utilizing smaller pots and triggering the bloom phase early to prevent the canopy from outgrowing the grow tent, allowing for a highly respectable yield of up to 500g/m².
Outdoors, this plant is an absolute monster. When given plenty of root space in a deep hole, it will easily stretch past 3 meters tall. By late October, cultivators are rewarded with massive, towering branches loaded with thick, milky trichomes—making this cultivar an absolute dream for hash makers and extractors chasing premium yields.
Flavor & Terpene Profile: Sophisticated Citrus & Sacred Incense
Forget the standard, artificial lemon candy aromas; Colombian Jack offers a refined terpene profile reserved for true cannabis gourmets. The award-winning flavor features a sharp, elegant blend of freshly sliced lime and bitter grapefruit. This bright, zesty citrus foundation is beautifully contrasted by deep, complex undertones of cathedral incense and rich sandalwood oil—a direct nod to its prestigious Black Jack and Jack Herer heritage. It is a highly intoxicating, sophisticated smoke from the very first inhale.
The Experience: Limitless Creative Energy
Testing at a staggering 28% THC, Colombian Jack is a true heavyweight designed for the seasoned consumer. This Sativa-dominant powerhouse acts as a catalyst for pure mental energy. The effects hit rapidly, delivering a soaring cerebral high that shatters creative blocks and promotes inspired, out-of-the-box thinking. As the intense mental stimulation elevates your mood, the 30% Indica genetics provide a subtle, relaxing physical undertone that keeps the body comfortably grounded. It is the ultimate daytime or social strain, perfect for sharing with friends and diving deep into creative projects.
Megan L –
Great structure, even canopy. Easy mode.
Jessica P –
Aroma woke up after a few days in storage. Rooted into peat mix; no lockout this round, popped held up.
Kendra S –
Dry grams landed where I aimed for this 3×3, aroma woke up after a week in a steel container, Glad I ran it.
Isabella S –
Rooted into coco coir; no lockout this round, Soak went fine; tails showed overnight.
KushPad –
Good overall, not my all-time favorite. Soft defol going into week three bloom. Hands-off feed was enough. Training gets a tweak next cycle.
Kenji Perez –
Grew this as a sativa. A loud room by week 5. Solid sit at first. Easy feed the whole time. Not marketing loud, just a home jar I actually finish.
Reina Boyd –
After soaking overnight. They all popped. Chunky little seedlings.
Winter Elliott –
Wasn’t watching the mailbox. The Colombian Jack pack shipping took 2 days. Seeds taoed in a card. Nothing crushed.
Tariq Griffin –
One issue with this pack. Custlmer service sent a couple extras. No fuss.
Mike Smith –
well worth the wait