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Super Jack Feminized
High-potency feminized hybrid with creative and focused effects and balanced hybrid structure. Ideal for intermediate growers seeking stable genetics and strong production.
βFlavor:Cherry, cream, hints of fuel
Grower tip: LST during veg creates an even canopy and more bud sites
Premium stabilized genetics Β· germination guaranteed
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About Super Jack Feminized
The most common mistake growers make with Super Jack is treating it like a simple "set and forget" cultivar. While ${name} is forgiving, the ${indica}/${sativa} balance means it responds noticeably to feeding adjustments at the veg-to-flower transition. Growers who continue veg-ratio nutrients into early flower miss 10-15% of this strain's yield potential by not switching to bloom feed when the first pistils appear. At 26% THC with limonene-dominant terpenes, the quality ceiling is high, but you have to manage the specific characteristics of this cultivar to reach it.
Growing This Strain: Where Things Go Right and Wrong
The three most common issues growers report with Super Jack:
1. Nutrient timing at the flip. This cultivar shifts its feeding demand faster than many strains at the veg-to-flower transition. Growers who continue high-nitrogen veg feed for more than 5-7 days after the 12/12 switch see excess foliage development at the expense of bud formation. Switch to bloom nutrients within the first week of seeing pistils.
**2. Training timing. Topping too late or too early both cost yield. The sweet spot: top at the 4th node when the 5th is just emerging. This gives you 4-6 strong laterals that develop into even colas. Earlier topping produces weaker branches. Later topping wastes veg time.
3. Harvest timing. With limonene as the dominant terpene, the aromatic peak does not align perfectly with the trichome maturity peak. Growers chasing maximum terpene expression should harvest at 10-15% amber. Growers prioritizing potency should wait for 15-20% amber. These are different windows, know which one you are targeting.
Flowering: 9-11 weeks. Yield: 450-550g/mΒ² indoor / 400-600g/plant outdoor. Height: Short-Medium (2-3.5 ft). Difficulty: intermediate.
Effects and Use
At 26% THC, Super Jack delivers creative, focused, energetic effects with a limonene-influenced character. The onset is balanced, head and body arrive together and remain proportional throughout a 2-3 hour duration. This makes the strain adaptable to different situations depending on dose. The limonene dominance keeps the mental space bright and slightly elevated even when the body relaxes.
Terpene Profile
Dominant terpenes: Limonene (primary), Caryophyllene (secondary), Linalool (tertiary). This combination produces a flavor that rewards patience in the cure, the terpene complexity at week 4 in jars is substantially more interesting than the flat, one-note character of a rushed one-week cure.
Who Should Grow Super Jack
Best suited for growers who want control over their plant size and harvest timing, photoperiod genetics let you veg as long as you want before triggering flower. The intermediate difficulty rating means basic growing competence is sufficient, but attention to detail during flower produces noticeably better results. Ships discreetly to all 50 US states with our germination guarantee.
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Super Jack Feminized, Cannabinoid & Terpene Reference
Reference ranges aggregated from publicly-reported third-party lab data and breeder documentation. Total THC reported as max-potential (THC + 0.877 Γ THCA). Individual seed-lot expression may vary by 1-3 percent.
Super Jack Feminized, Aggregated Grower Yield Reports
Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on Super Jack Feminized feminized seeds. First-time growers should expect 70-85 percent of these numbers.
| Setup | Yield |
|---|---|
| Outdoor, in-ground, full sun | 698g |
| Outdoor, 25-gal fabric pot, full sun | 698g |
Super Jack Feminized, Sourcing & Genetics
Super Jack Feminized was bred in Spain by a respected European seed bank and selected for stability across multiple climates before reaching the US market.
Adaptable to most US climates. Performs best in moderate temperature ranges (60-85Β°F). Indoor recommended in extreme climates.
Super Jack Feminized, Breeder Information
Royal King GeneticsBred and stabilized in-house by Royal King Genetics , our internal breeding team. Every order is backed by our 95% germination guarantee. Read our full breeding process and about page.
F3 stabilization on the Super Jack cross. Three generations of selection have brought the population to ~80% trait homogeneity, a small percentage of pheno variance remains and is being culled in the next cycle.
Stabilize Super Jack across three generations toward F4 production-ready stock.
Selected for terpene profile, vigor, structure, and finishing-time consistency.
Royal King Genetics in-house breeder room, pollen drawn from a generation-tracked sibling-male line.