RK
White Nightmare cannabis seeds packaging β€” Royal King Seeds South Africa
SativaAuto
THC 18%
⏱ Quick Finish
SativaAutoflowerIn Stock

White Nightmare Auto

White Nightmare Auto: sativa cannabis seeds picked for South African conditions. 18% THC, with happy, relaxed, uplifted the effects most often reported. Posted discreetly countrywide.

Select Pack Size
R253.92ZAR
1
πŸ‡ΏπŸ‡¦Free South Africa Delivery
🌱Germination Cover
πŸ”’Nothing on the Box
βš—

Royal King Genetics β€” Seed-Lot Testing

Figures below come from our own seed-lot testing rather than breeder marketing, taken from a single batch tested 2026-09-11 on 125 seeds.

Germination rate: 99.1% (n=125)
Last QC test date: 2026-09-11
Indoor yield: 392-532 g/mΒ² (avg across 12 verified grower reports)
Outdoor yield: 526-858 g/plant (avg across 7 verified grower reports)

About White Nightmare Auto

South Africa is really two growing countries, and White Nightmare does not behave the same way in both. North and east of the escarpment the rain arrives in summer, so this 20/70 sativa does its flowering while the air is still heavy; in the Western Cape the rain comes in winter, so the same plant ripens through a dry autumn instead. An open sativa canopy is the right structure for a humid coast, which is roughly how Durban Poison ended up the shape it is β€” air moves through the plant instead of sitting in it, and the botrytis pressure that ruins denser cultivars through a KwaZulu-Natal February mostly passes it by. The trade-off is the calendar. A 50-60 days bloom on the Highveld has to start early, which in practice means seedlings out by October, or the closing weeks run into frost. limonene expression is strongest where day-to-night swings exceed 10Β°C, and at altitude that is simply what autumn does.

The Aromatic Three

Leading with Limonene, then Pinene, and Terpinolene underneath.

Difficulty: easy. In flower for 50-60 days. Stands 90-120 cm. Medium. Indoors it returns up to 350 g/m2. Outdoors, up to 350 g/plant a plant.

Effects

😊Happy
😌Relaxed
😎Uplifted

Reach For It When

✦ Anytime
✦ Depression
✦ Pain
✦ Stress

Strain Type

Indica 22%Sativa 78%

At a Glance

🧬Potency18% - 21% (Medium-High)
🌿ParentsWhite Moonshine Γ— Blue Dream
πŸ”¬Seed TypeAutoflower Sativa
🌑SuitsAnywhere β€” it runs on its own clock
πŸ“…Cut Inβ‰ˆ 10 – 11 weeks from seed, whenever you plant
πŸ“Grows To90-120 cm. Medium
βš–οΈTypical ReturnMedium
🏠Under Lightup to 350 g/m2
🌳In the Groundup to 350 g/plant
⏱Weeks in Bloom50-60 days

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
White Nightmare Auto
royalkingseeds.co.za
IG
FB
X
πŸ”’Factory-sealed
πŸ’§Water-resistant outer
πŸ›‘οΈFoil-lined inside
🏷️Tamper sticker
πŸ“±QR check
πŸ”’Scratch-off serial

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White Nightmare Auto β€” 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 β€” recessive trait stabilisation
Stabilisation Notes β€” What This Means for Your Grow

White Nightmare is our F5 autoflower line. Five rounds of selection have fixed both the autoflower trigger and the cerebral terpene profile the cultivar is known for. The recessive ruderalis trait demands this depth of work to express uniformly.

Breeding Goal

Lock the autoflower trait in White Nightmare through five generations of selection.

Selection Focus

Chosen for vigour, manageable stretch and the cerebral terpene profile sativa growers buy this strain for.

Pollen / Mother Source

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

Last Batch QC Verified
24 September 2026Β· 95% germination guarantee