
Free Seeds With Every Order
Choose your free strains, no mystery seeds. Learn more
LA Jack Feminized
Potent feminized hybrid with euphoric and creative effects and vigorous hybrid bud production. Ideal for intermediate growers seeking potency and reliable yields.
◉Flavor:Sweet dough, fruity candy, pine
Grower tip: Feed on the higher end of hybrid ranges during peak flower
Premium stabilized genetics · germination guaranteed
Ready to grow this strain?
Free Seeds With Every Order
Choose your free strains, no mystery seeds. Learn more
About LA Jack Feminized
In a market saturated with hybrid genetics at the 24% THC range, LA Jack distinguishes itself through its caryophyllene/limonene terpene combination and its genuine versatility, this is not just a hybrid by label, it expresses balanced characteristics that make it adaptable to different use scenarios. Compared to similar genetics in our catalog, LA Jack trades raw potency for terpene complexity, which makes the flower more interesting to experienced users who have moved past judging quality by THC percentage alone.
How It Grows Compared to Similar Genetics
In the grow room, LA Jack sits in the practical middle ground that hybrid growers appreciate. Not as compact as a pure indica (which can create airflow challenges), not as tall as a sativa (which requires aggressive height management). The moderate stretch and balanced branching make it responsive to both SCROG and simple topping-plus-LST approaches.
Flowering: 9-11 weeks. Yield: 400-500g/m² indoor / 350-500g/plant outdoor. Height: Compact (2-3 ft). Difficulty: intermediate. Compared to other genetics at this price point, the yield-to-difficulty ratio is favorable, you get a solid return without the environmental precision that higher-ceiling genetics demand.
Effects and Use
At 24% THC, LA Jack delivers euphoric, creative, calm effects with a caryophyllene-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 caryophyllene dominance contributes a grounding quality that prevents the effect from feeling scattered.
Terpene Profile
Dominant terpenes: Caryophyllene (primary), Limonene (secondary), Myrcene (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 LA 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.
Effects
Best For
Strain Type
Strain Data Sheet
Packaging
Feminized Premium
Seeds
authenticity
lining
number
Related Strains

Mexican Haze Feminized
Buy Mexican Haze Feminized cannabis seeds online in the USA. Sativa strain with 17% THC. Effects: Euphoric, Focused, Energetic. Discreet shipping to all 50 states with germination guarantee.

Super Skunk Auto
Buy Super Skunk Auto cannabis seeds online in the USA. Indica strain with 20% THC. Effects: Euphoric, Happy, Relaxed. Discreet shipping to all 50 states with germination guarantee.

Heavy Duty Fruity Feminized
Buy Heavy Duty Fruity Feminized cannabis seeds online in the USA. Hybrid strain with 20% THC. Effects: Happy, Relaxed, Uplifted. Discreet shipping to all 50 states with germination guarantee.

New Glue Auto
Buy New Glue Auto cannabis seeds online in the USA. Indica strain with 23% THC. Effects: Euphoric, Happy, Tingly. Discreet shipping to all 50 states with germination guarantee.
LA 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 × THCA). Individual seed-lot expression may vary by 1-3 percent.
LA Jack Feminized, Aggregated Grower Yield Reports
Yield ranges aggregated from public grower journals, breeder-documented spec sheets, and cultivation community reports on LA Jack Feminized feminized seeds. First-time growers should expect 70-85 percent of these numbers.
| Setup | Yield |
|---|---|
| Outdoor, greenhouse, supplemental light | 591g |
| Outdoor, balcony, 5-gal fabric pot | 591g |
LA Jack Feminized, Sourcing & Genetics
LA Jack Feminized originates from a 2010s California breeder line developed by hand-selecting the most potent phenotypes from multiple generations.
Adaptable to most US climates. Performs best in moderate temperature ranges (60-85°F). Indoor recommended in extreme climates.
LA 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.
Four generations of filial stabilization on the LA Jack cross. The pack-to-pack uniformity expression is uniform; pheno-to-pheno yield variation is within ±10% of the published numbers.
Take LA Jack from F1 cross to F4 production-ready seed stock.
Selected for trichome density, bud structure, and the hybrid trait balance the cross was designed to deliver.
Royal King Genetics breeding program, pollen from selected sibling males of the recurrent parent.