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LA Jack cannabis seeds packaging β€” Royal King Seeds the UK
Hybrid
THC 24%
🎨 Creative
HybridFeminizedIn Stock

LA Jack Feminized

Feminized PhotoperiodSee Lab Report β†’

Grow LA Jack Feminized in the UK. Hybrid genetics at 24% THC, known for euphoric, creative, calm effects.

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Β£11.79
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About LA Jack Feminized

Open a jar of properly cured LA Jack and the first impression is unmistakably caryophyllene β€” a warm, peppery spice that registers almost as heat on the palate, layered with dried clove and sandalwood. Beneath this primary note, limonene introduces a bright citrus lift that emerges mid-palate. This 62/38 hybrid tests at 24% THC, but the sensory journey is what distinguishes LA Jack from other cultivars at comparable potency. Think of it like comparing a single-origin wine to a blended table variety β€” the numbers might overlap, but the experience diverges sharply.

Developing the Full Flavour Profile

Growing LA Jack for maximum terpene expression requires deliberate choices that differ from growing purely for yield. The Caryophyllene/Limonene/Myrcene profile responds particularly well to organic living soil β€” the microbial activity in a well-established no-till bed creates secondary metabolites that synthetic nutrients simply cannot replicate. UK growers have access to excellent local compost and worm casting suppliers that make this approach practical.

During the 60-70 days period, avoid foliar sprays after week 2 β€” anything deposited on developing trichomes compromises the aromatic purity at harvest. Temperature manipulation in the final three weeks profoundly influences which terpenes dominate the cured flower: cooler night temperatures (16-18Β°C) amplify caryophyllene expression, whilst warmer finishes preserve the lighter myrcene top notes.

The cure is where most UK growers leave flavour on the table. After a 10-14 day hang dry at 15-18Β°C and 55-60% relative humidity (a challenge in a damp British autumn β€” a climate-controlled room or wine fridge set to 16Β°C works brilliantly), transfer to glass jars and burp twice daily for the first fortnight. The limonene secondary notes that make this strain genuinely special only emerge after 21-28 days of jar curing. Patience transforms a good flower into a remarkable one.

Flowering: 60-70 days. Indoor yield: up to 400 g/m2. Outdoor yield: up to 500 g/plant. Rated intermediate difficulty.

Flavour, Aroma, and Experience

The sensory arc of LA Jack unfolds in stages. Initial inhalation at 24% THC brings a warm peppery spice that tingles at the back of the throat. The euphoric, creative, calm effects emerge within minutes, presenting as a simultaneous head-and-body experience. Mental clarity remains intact whilst the muscles release tension progressively. This dual action makes it adaptable β€” a lighter dose suits afternoon tasks, a heavier dose transitions seamlessly into evening relaxation. The limonene secondary terpene adds a distinct layer: a mood-elevating brightness that counterbalances any heaviness.

Terpene Breakdown

Primary: Caryophyllene Β· Secondary: Limonene Β· Tertiary: Myrcene. Flavour translation from flower to vapour and smoke differs with this terpene combination. Low-temperature vaporisation (180-188Β°C) highlights the limonene and myrcene notes whilst keeping caryophyllene as a foundation. Higher temperatures or combustion flatten the profile into a single-note experience β€” still pleasant, but lacking the complexity that makes this cultivar genuinely interesting to those who appreciate flavour.

Suitability and Recommendations

Who grows LA Jack successfully? Indoor growers seeking full control over their harvest timeline. Outdoor cultivators who want to decide exactly when flowering begins. Anyone with the space and patience to vegetate this plant to its full potential before triggering bloom. Difficulty is rated intermediate, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered UK-wide in discreet, unbranded packaging with germination guarantee included.

Effects

πŸ€—Euphoric
74% of people reported feeling Euphoric
🀩Creative
70% of people reported feeling Creative
🧘Calm
60% of people reported feeling Calm
😌Relaxed
51% of people reported feeling Relaxed
😊Happy
45% of people reported feeling Happy
😎Uplifted
38% of people reported feeling Uplifted
🀀Hungry
34% of people reported feeling Hungry
😴Sleepy
31% of people reported feeling Sleepy
πŸ˜†Giggly
24% of people reported feeling Giggly

Strain Type

Indica 62%Sativa 38%

Strain Data Sheet

🧬THC24% - 27% (High)
🌿LineageBalanced Hybrid (Undisclosed Lineage)
πŸ”¬TypeFeminized Hybrid
🌑ClimateTemperate, adaptable
πŸ“…HarvestLate Sept – Oct, UK outdoor (typical)
πŸ“Height100 – 160 cm (typical)
βš–οΈYieldMedium – High
🏠Yield Indoorup to 400 g/m2
🌳Yield Outdoorup to 500 g/plant
⏱Flowering Time60-70 days

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable UK Commonwealth, state, and territory legislation.
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LA Jack Feminized
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πŸ”’Sealed for authenticity
πŸ’§Waterproof coating
πŸ›‘οΈAluminium interior lining
🏷️Protective sticker
πŸ“±QR code verification
πŸ”’Scratchable serial number

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LA Jack Feminized β€” Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics β€” our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.

Stabilisation Level
F4
Generations
4+
Breeding Programme
Royal King Genetics Filial Programme β€” four-generation pheno fixing
Stabilisation Notes β€” What This Means for Your Grow

Four rounds of filial stabilisation on the LA Jack cross. The pack-to-pack uniformity expression sits uniform; pheno-to-pheno yield variation runs within Β±10% of the published numbers.

Breeding Goal

Carry LA Jack from F1 cross to F4 production-ready seed stock.

Selection Focus

Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.

Pollen / Mother Source

Royal King Genetics breeding facility β€” pollen from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
2 April 2026Β· 99%+ germination