Kush XL cannabis seeds packaging — Royal King Seeds South Africa
IndicaAuto
THC 17%
Quick Finish
IndicaAutoflowerIn Stock

Kush XL Auto

Buy Kush XL Auto seeds in South Africa. Indica · 17% THC · relaxed, sleepy, happy. Every figure on this page is sourced, and every order ships unbranded.

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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 2026-02-14 on 175 seeds.

Germination rate: 97.6% (n=175)
Last QC test date: 2026-02-14
Indoor yield: 429-596 g/m² (avg across 9 verified grower reports)
Outdoor yield: 469-814 g/plant (avg across 8 verified grower reports)

About Kush XL Auto

Will Kush XL handle a South African summer outdoors? Yes. Put this 68/32 indica in the ground between September and November and you will be cutting from March to May. It stays low enough not to clear a boundary wall, and the short frame carries more weight than its size suggests. Bloom runs 8-10 weeks seed to harvest, placing harvest between March and May across most provinces.

What yield is realistic? 300-400 g/m2 indoors is reachable under decent LED with steady feeding. Outdoors, 700 g/plant a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 17% THC with myrcene in front, the return on effort is good.

How much can go wrong before it shows? Some. Anyone who understands pH, a feeding schedule and a light cycle will be fine. Neglect it entirely and it will suffer, but a single missed watering will not undo the grow.

Further Questions from South African Growers

Which medium suits it best? Depends what you are optimising for. Organic soil cut with 30% perlite and amended with bone meal, rock phosphate and kelp meal gives the fuller flavour, and all three are stocked by garden centres, agricultural co-ops and hydro shops countrywide. Coco under automated fertigation at EC 1.4-1.8 through bloom gives the bigger number. This indica genetics performs in either.

Does it cope with real summer heat? Reasonably. The dense foliage shades itself, so a spell above 28°C slows growth without stalling it. Mulch the root zone and water before 7am and heat stress stays manageable through most of the country.

When do I switch to bloom feed? As soon as pistils show, not a fortnight later. The 68/32 genetics changes its demand sharply at the transition: phosphorus and potassium uptake rises while nitrogen demand falls away. Soil growers can top-dress with guano and sulphate of potash; coco and hydro growers should move to a low-N, high-PK formula immediately.

Indoors or outdoors? Indoors buys control over the 8-10 weeks seed to harvest environment. Outdoors, across a September-to-May season, gives you sunlight intensity no LED at any price reproduces, and the full 700 g/plant. Difficulty: easy. In flower for 8-10 weeks seed to harvest. Stands 60 cm. Indoors it returns 300-400 g/m2. Outdoors, 700 g/plant a plant.

What Kush XL Is Like to Use

The effects most commonly reported for this cultivar are relaxed, sleepy, happy. At 17% THC it sits in a bracket where the dose does most of the work. A single bowl vaporised at 185°C gives a manageable body relaxation with your head still intact — enough to close out a long day in the summer heat. Push the dose and it moves decisively toward physical sedation, which is how it tends to end up as a winter evening cultivar. The Myrcene/Humulene pairing leaves an earthy sweetness with a fruit finish on the palate.

Where it fits: quiet evenings, a film, recovery after exercise, and the hours before sleep.

The Aromatic Three

Leading with Myrcene, then Humulene, and Linalool underneath. How this combination survives the move from flower to vapour or smoke is not a given. Held low, at 180-188°C, the humulene and linalool notes stay legible with myrcene 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

Kush XL is a reasonable fit for growers with the basics already in place. Understand pH, know roughly what nutrient ratios do, and be able to hold a light cycle — it will not carry you, but it does not punish the occasional slip either. Because it autoflowers there is no light cycle to manage at all, which is what makes it work on a balcony, in an out-of-the-way outdoor spot, or anywhere a timer would be one more thing to go wrong. A September-to-May outdoor season comfortably covers a 8-10 weeks seed to harvest bloom in the frost-free provinces. Posted discreetly anywhere in South Africa, with sourced grow figures shown on every strain page.

Effects

😌Relaxed
😴Sleepy
😊Happy

Reach For It When

Evening
Relaxation
Sleep Support

Strain Type

Indica 68%Sativa 32%

At a Glance

🧬Potency17% - 21% (Medium-High)
🌿ParentsAutoflowering Indica-Dominant Hybrid (Undisclosed Lineage)
🔬Seed TypeAutoflower Indica
🌡SuitsAnywhere — it runs on its own clock
📅Cut In≈ 10 – 11 weeks from seed, whenever you plant
📏Grows To60 cm
⚖️Typical ReturnMedium – High
🏠Under Light300-400 g/m2
🌳In the Ground700 g/plant
Weeks in Bloom8-10 weeks seed to harvest

In the Packet

Reseals +
RK
Royal King Seeds
Autoflowering
Regular
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
Kush XL Auto
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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Kush XL Auto — 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
F5
Generations
5+
Breeding Programme
Royal King Genetics Auto Line — recessive trait stabilisation
Stabilisation Notes — What This Means for Your Grow

Kush XL is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the purple expression the cultivar is known for. The recessive ruderalis trait demands this depth of work to express uniformly.

Breeding Goal

Lock the autoflower trait in Kush XL through five generations of selection.

Selection Focus

Chosen for purple/dark expression where it shows, dense bud structure and a true indica relaxation profile.

Pollen / Mother Source

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

Last Batch QC Verified
25 October 2025· 95% germination guarantee