Neptune Kush cannabis seeds packaging — Royal King Seeds South Africa
Sativa
THC 16%
🎨 Heady
SativaFeminisedIn Stock

Neptune Kush Feminised

A sativa testing at 16% THC, Neptune Kush Feminised is reported happy, energetic, creative. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.

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R220.04ZAR
1
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🌱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 2026-04-12 on 450 seeds.

Germination rate: 99.3% (n=450)
Last QC test date: 2026-04-12
Indoor yield: 408-536 g/m² (avg across 16 verified grower reports)
Outdoor yield: 670-942 g/plant (avg across 7 verified grower reports)

About Neptune Kush Feminised

Neptune Kush announces itself in a fixed order, and limonene is always first out of the jar — a citrus lift that arrives before the lid is fully off, lemon rind and tangerine with a sweetness trailing it. pinene follows mid-palate, adding resinous clarity. The lab figure on this 10/90 sativa is 16% 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 Limonene/Pinene/Terpinolene profile in Neptune Kush 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 53 days (7-8 weeks), 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 limonene forward, a warmer finish protects the lighter terpinolene 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 pinene layer that makes this cultivar worth the trouble does not surface until somewhere between day 21 and day 28 in glass.

Difficulty: intermediate. In flower for 53 days (7-8 weeks). Stands 80-140 cm. Indoors it returns 550-600 g/m2. Outdoors, 600-650 g/plant a plant.

Aroma, Flavour and Effect

The first thing Neptune Kush does at 16% THC is lift it with a bright, nearly effervescent citrus. The happy, energetic, creative effects follow within minutes, as a sharpening rather than a lift: colour reads more saturated, music holds more detail, conversation wanders further than it would have. It runs two to three hours on a plateau instead of a peak, so nothing drops out from under you at the end. Pinene sits underneath all of it, adding an alertness that keeps thinking crisp.

The Aromatic Three

Leading with Limonene, then Pinene, and Terpinolene underneath. How this combination survives the move from flower to vapour or smoke is not a given. Held low, at 180-188°C, the pinene and terpinolene notes stay legible with limonene 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 Neptune Kush? 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 intermediate, 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

😊Happy
🤑Energetic
🤩Creative

Reach For It When

Daytime
Creative Projects
Social Activities

Strain Type

Indica 10%Sativa 90%

At a Glance

🧬Potency16% - 19% (Medium-High)
🌿ParentsSativa-Dominant Hybrid (Undisclosed Lineage)
🔬Seed TypeFeminised Sativa
🌡SuitsSubtropical coast, long season
📅Cut InMarch – May outdoors, planted Sept – Nov
📏Grows To80-140 cm
⚖️Typical ReturnHigh
🏠Under Light550-600 g/m2
🌳In the Ground600-650 g/plant
Weeks in Bloom53 days (7-8 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
Neptune Kush Feminised
royalkingseeds.co.za
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FB
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🔒Factory-sealed
💧Water-resistant outer
🛡️Foil-lined inside
🏷️Tamper sticker
📱QR check
🔢Scratch-off serial

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Neptune Kush 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
BX3
Generations
4+
Breeding Programme
Three-Generation Backcross Programme — recurrent-parent fixing
Stabilisation Notes — What This Means for Your Grow

Neptune Kush has been the target of countless seed-bank backcross programmes. Ours is BX3 — three rounds of crossing the elite cut back to the parental line until trait expression evened out. The pack grows true to the mother cut.

Breeding Goal

Recreate the Neptune Kush clone-only cut in stable seed form.

Selection Focus

Chosen for trichome density, sativa branching architecture and an energising terpene expression.

Pollen / Mother Source

Royal King Genetics elite-cut archive — pollen from a maintained S1 line of the original elite mother.

Last Batch QC Verified
31 July 2026· 95% germination guarantee