Grape Stomper cannabis seeds packaging — Royal King Seeds South Africa
Indica
THC 20%
📈 Big Harvest
IndicaFeminisedIn Stock

Grape Stomper Feminised

Buy Grape Stomper Feminised seeds in South Africa. Indica · 20% THC · euphoric, happy, relaxed. Every figure on this page is sourced, and every order ships unbranded.

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R211.57ZAR
1
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🌱Germination Cover
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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 2026-02-16 on 275 seeds.

Germination rate: 98.9% (n=275)
Last QC test date: 2026-02-16
Indoor yield: 487-656 g/m² (avg across 7 verified grower reports)
Outdoor yield: 507-818 g/plant (avg across 10 verified grower reports)

About Grape Stomper Feminised

Will Grape Stomper handle a South African summer outdoors? Yes. Put this 75/25 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 9-10 weeks, placing harvest between March and May across most provinces.

What yield is realistic? Up to 350g/m² indoors is reachable under decent LED with steady feeding. Outdoors, Up to 450 gr a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 20% THC with linalool 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 75/25 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 9-10 weeks environment. Outdoors, across a September-to-May season, gives you sunlight intensity no LED at any price reproduces, and the full Up to 450 gr. Difficulty: medium. In flower for 9-10 weeks. Stands Medium. Indoors it returns Up to 350g/m². Outdoors, Up to 450 gr a plant.

What Grape Stomper Is Like to Use

The effects most commonly reported for this cultivar are euphoric, happy, relaxed. At 20% 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 Linalool/Myrcene pairing leaves a shifting profile that keeps turning up new notes on the palate.

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

The Aromatic Three

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

Grape Stomper 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. Photoperiod genetics leave size and timing in your hands — hold it in veg for a bigger plant, or flip early when headroom is the constraint. A September-to-May outdoor season comfortably covers a 9-10 weeks bloom in the frost-free provinces. Posted discreetly anywhere in South Africa, with sourced grow figures shown on every strain page.

Effects

🤗Euphoric
😊Happy
😌Relaxed

Reach For It When

Anytime
Headache
Pain
Stress

Strain Type

Indica 75%Sativa 25%

At a Glance

🧬Potency20% - 25% (High)
🌿ParentsPurple Elephant × Chemdog Sour Diesel
🔬Seed TypeFeminised Indica
🌡SuitsHighveld and the drier interior
📅Cut InMarch – May outdoors, planted Sept – Nov
📏Grows ToMedium
⚖️Typical ReturnMedium
🏠Under LightUp to 350g/m²
🌳In the GroundUp to 450 gr
Weeks in Bloom9-10 weeks

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
Grape Stomper 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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Grape Stomper 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
BX2
Generations
3+
Breeding Programme
Two-Generation Backcross Programme — recurrent-parent fixing
Stabilisation Notes — What This Means for Your Grow

Grape Stomper carries clone-derived parents from the modern hybrid. We backcrossed twice to the dominant parent (BX2) to weld cut-specific traits into seed-stable form. Vigour and dense flower architecture run uniform across the population.

Breeding Goal

Stabilise the Grape Stomper cross into a seed-uniform line.

Selection Focus

Chosen for indica vigour, compact bud formation and a reliable finish window.

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.

Last Batch QC Verified
22 March 2026· 95% germination guarantee