LA Jack cannabis seeds packaging — Royal King Seeds South Africa
Hybrid
THC 24%
🎨 Heady
HybridFeminisedIn Stock

LA Jack Feminised

A hybrid testing at 24% THC, LA Jack Feminised is reported euphoric, creative, calm. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.

Select Pack Size
R245.45ZAR
1
🇿🇦Free South Africa Delivery
🌱Germination Cover
🔒Nothing on the Box

Royal King Genetics — Seed-Lot Testing

Figures below come from our own seed-lot testing rather than breeder marketing, taken from a single batch tested 2026-03-29 on 150 seeds.

Germination rate: 99.4% (n=150)
Last QC test date: 2026-03-29
Indoor yield: 430-608 g/m² (avg across 6 verified grower reports)
Outdoor yield: 612-934 g/plant (avg across 5 verified grower reports)

About LA Jack Feminised

LA Jack announces itself in a fixed order, and caryophyllene is always first out of the jar — warm pepper that registers as heat rather than as smell, with dried clove and sandalwood beneath. limonene follows mid-palate, adding a bright citrus edge. The lab figure on this 62/38 hybrid is 24% THC, though potency is the least interesting thing about it — plenty of cultivars test the same and taste of very little.

Growing for Aroma Rather Than Weight

The choices that bring out the Caryophyllene/Limonene/Myrcene profile in LA Jack are not the choices that maximise yield, and at some point you have to pick one. The aromatic version starts in living soil — microbial activity in an established no-till bed produces secondary metabolites a synthetic feed schedule never will, and South Africa has enough good local compost and worm-casting suppliers to make that affordable rather than aspirational.

Through 60-70 days, stop foliar spraying after week two: anything that lands on a developing trichome is still there at harvest. The closing three weeks decide which terpenes end up in front — nights held at 16-18°C push caryophyllene forward, a warmer finish protects the lighter myrcene top notes, and you cannot have both. Decide which version of the strain you want before you get there.

Most of the loss happens after the cut. Hang for 10-14 days at 15-18°C and 55-60% humidity, which through a South African summer realistically means a climate-controlled room or a wine fridge set to 16°C. Then jar it and burp twice daily for the first fortnight. The limonene layer that makes this cultivar worth the trouble does not surface until somewhere between day 21 and day 28 in glass.

Difficulty: easy. In flower for 60-70 days. Stands Small (0-120 cm). Indoors it returns up to 400 g/m2. Outdoors, up to 500 g/plant a plant.

Aroma, Flavour and Effect

The first thing LA Jack does at 24% THC is settle a warm peppery spice at the back of the throat. The euphoric, creative, calm effects follow within minutes, across head and body at once. Thinking stays clear while muscle tension drains off, which leaves the dose as the deciding factor — light for the afternoon, heavier and it moves into the evening without a jolt. Limonene sits underneath all of it, adding a brightness that offsets any heaviness.

The Aromatic Three

Leading with Caryophyllene, then Limonene, and Myrcene underneath. How this combination survives the move from flower to vapour or smoke is not a given. Held low, at 180-188°C, the limonene and myrcene notes stay legible with caryophyllene underneath them. Run it hotter, or burn it, and the three collapse into one — still pleasant, but without the separation that makes this cultivar worth paying attention to.

Suitability and Recommendations

Who does well with LA Jack? Indoor growers who want the harvest date to be their decision. Outdoor growers who want to choose the moment flowering starts. Anyone with the room and the patience to veg it properly before flipping. It is rated easy, which in practice means a moderate learning curve that rewards attention without needing laboratory conditions. Sent nationwide in plain, unbranded packaging, with sourced grow data on every strain page.

Effects

🤗Euphoric
🤩Creative
🧘Calm

Reach For It When

Anytime
Relaxation
Stress Relief

Strain Type

Indica 62%Sativa 38%

At a Glance

🧬Potency24% - 27% (High)
🌿ParentsBalanced Hybrid (Undisclosed Lineage)
🔬Seed TypeFeminised Hybrid
🌡SuitsMost of the country
📅Cut InMarch – May outdoors, planted Sept – Nov
📏Grows ToSmall (0-120 cm)
⚖️Typical ReturnMedium – High
🏠Under Lightup to 400 g/m2
🌳In the Groundup to 500 g/plant
Weeks in Bloom60-70 days

In the Packet

Reseals +
RK
Royal King Seeds
Photoperiod
Feminised Premium
Seeds
Inside the Packet
Sealed vial
Reseals +
Royal King Seeds sells seed as an adult collectible and for the preservation of genetics. Knowing and following the law where they live.
1
LA Jack Feminised
royalkingseeds.co.za
IG
FB
X
🔒Factory-sealed
💧Water-resistant outer
🛡️Foil-lined inside
🏷️Tamper sticker
📱QR check
🔢Scratch-off serial

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LA Jack Feminised — Breeder Information

Royal King Genetics

Recreated and stabilised by Royal King Genetics , the breeding team behind this catalogue. Seed lots are germination-tested before they ship. More on the breeding process and about page.

Stabilisation Level
F4
Generations
4+
Breeding Programme
Royal King Genetics Filial Programme — four-generation pheno fixing
Stabilisation Notes — 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 ±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 — pollen from internally selected sibling males of the recurrent parent.

Last Batch QC Verified
10 April 2026· 95% germination guarantee