Super JackStrain — Effects, Genetics, Grow Guide & Where to Buy in Canada
Super Jack is a hybrid cannabis strain with 26% THC and a 8-10 weeks flowering period. It is known for creative and focused effects and grows best in temperate Canadian outdoor zones with at least 130 frost-free days. Super Jack seeds are sold at Royal King Seeds Canada with discreet Canada-wide shipping and a high-germination guarantee.
Super Jack is one of the most-searched cannabis strains among Canadian growers, with a profile that holds up under scrutiny. It is a balanced hybrid (60% indica / 40% sativa) testing at roughly 26%% THC, with a flowering window of 8-10 weeks under a 12/12 photoperiod. This guide pulls together the lineage, the effects, the grow data, and the practical answer to "where can I buy Super Jack seeds in Canada" in one place.
Super Jack Quick Stats
THC
26%%
Indica
60%
Sativa
40%
Autoflower
No
Flowering
8-10 weeks
Difficulty
intermediate
Indoor Yield
450-550 g/m²
Outdoor Yield
500-700 g/plant
Plant Height
120-180 cm
Super JackEffects & Experience
The dominant effects of Super Jack are creative, focused, energetic, and the experience is more nuanced than a simple high/low/sedating label would suggest. Onset is gradual rather than abrupt, the peak holds for roughly an hour, and the comedown is smooth — which is why this strain shows up in so many "daily driver" lists from experienced consumers.
Growing Super Jack
Growing Super Jack fits temperate and southern Canadian zones — coastal BC, Southern Ontario, and the Niagara region with mild September weather. Super Jack is photoperiod, which means you control when it flowers by switching from 18/6 (vegetative) to 12/12 (flowering). Most indoor growers veg for 4-6 weeks before the flip. Indoor yields land around 450-550 g/m² under quality LED, and outdoor plants given full sun and 5-7 gallon containers reliably produce 500-700 g/plant. Expected plant height is 120-180 cm, with intermediate cultivation difficulty. Practical tips that move the needle: flush nutrients in the final 10-14 days for cleaner flavor; trichomes finish properly even on plain pH-adjusted water; and apply low-stress training in week 2 of veg — bend the main stem horizontally and tie down to expose lower nodes. The most common challenge growers report is calcium and magnesium supplementation under bright LED lighting; cal-mag at 2-3 mL/gal from week 2 prevents the most common deficiency.
Super JackLineage & Genetics
Super Jack is a Royal King Genetics in-house cross. The parental selection was chosen for hybrid vigor and a balanced effect profile, then stabilized over multiple generations to lock in phenotype expression. Seeds run true to the description on this page rather than spreading across a wide range of expressions.
Where to Buy Super Jack Seeds in Canada
Super Jack seeds ship from Royal King Seeds to every Canadian province and territory with discreet packaging and a high-germination guarantee. Average delivery is 3-7 business days, with the fastest routes typically reaching British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Northwest Territories.
Super Jack FAQ
Is Super Jack indica or sativa?+
Super Jack is a balanced hybrid with a 60% indica / 40% sativa split. The effects lean toward physical relaxation and a calm, settled headspace.
How long does Super Jack take to flower?+
Super Jack flowers in 8-10 weeks once you flip to 12/12 light cycle. Outdoor harvest typically lands in late September to mid-October across most Canadian growing zones.
What is the THC content of Super Jack?+
Super Jack tests at approximately 26%% THC when grown to its potential. Real-world numbers depend on grow conditions, harvest timing, and curing — well-grown phenotypes can land at the high end of that range, while poorly cured flower tests lower.
Is Super Jack good for beginner growers?+
Super Jack is rated intermediate difficulty. Photoperiod genetics give you control over plant size and harvest timing, which means a bit more responsibility for getting the schedule right. Most growers with one harvest behind them handle this strain without difficulty.
Where can I buy Super Jack seeds in Canada?+
Royal King Seeds ships Super Jack seeds to every Canadian province and territory with discreet packaging, tracked delivery, and a high-germination guarantee. The product page is at https://royalkingseeds.ca/super-jack-feminized — checkout accepts standard cards and Interac.