RK
Amsterdam cannabis seeds packaging β€” Royal King Seeds South Africa
Hybrid
THC 18%
🎨 Heady
HybridFeminisedIn Stock

Amsterdam Feminised

Amsterdam Feminised for South African growers β€” hybrid genetics at 18% THC, reported as happy, creative, focused. Sourced grow figures on the page, plain packaging, delivered nationwide.

Select Pack Size
R186.16ZAR
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 2026-09-24 on 275 seeds.

Germination rate: 97.3% (n=275)
Last QC test date: 2026-09-24
Indoor yield: 445-560 g/mΒ² (avg across 13 verified grower reports)
Outdoor yield: 651-932 g/plant (avg across 4 verified grower reports)

About Amsterdam Feminised

South Africa is really two growing countries, and Amsterdam does not behave the same way in both. North and east of the escarpment the rain arrives in summer, so this 62/38 hybrid 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. A 62/38 split travels better than either parent across a country running from subtropical coast to semi-desert. The canopy sits open enough to survive a humid KwaZulu-Natal autumn and dense enough to still look the part after a dry Karoo summer. At 18% THC with myrcene leading, what changes between a Johannesburg rooftop and a Cape smallholding is the schedule rather than the result.

The Aromatic Three

Leading with Myrcene, then Limonene, and Pinene underneath.

Difficulty: easy. In flower for Β±60 days. Stands 100–140 cm. Indoors it returns 325–425 g/mΒ². Outdoors, 400–600 g/plant a plant.

Effects

😊Happy
🀩Creative
🧠Focused

Reach For It When

✦ Anytime
✦ Relaxation
✦ Stress Relief

Strain Type

Indica 62%Sativa 38%

At a Glance

🧬Potency18% - 21% (Medium-High)
🌿ParentsBalanced Hybrid (Undisclosed Lineage)
πŸ”¬Seed TypeFeminised Hybrid
🌑SuitsMost of the country
πŸ“…Cut InMarch – May outdoors, planted Sept – Nov
πŸ“Grows To100–140 cm
βš–οΈTypical ReturnMedium – High
🏠Under Light325–425 g/mΒ²
🌳In the Ground400–600 g/plant
⏱Weeks in Bloom±60 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
Amsterdam Feminised
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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Amsterdam Feminised 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
F4
Generations
4+
Breeding Programme
Filial Stabilisation (F4) β€” four-generation selection
Stabilisation Notes β€” What This Means for Your Grow

F4 stabilisation on Amsterdam. Each generation we cull aggressively against off-types β€” the F4 population reflects only the phenos that match the cultivar reference profile.

Breeding Goal

Cull off-type phenos in Amsterdam through filial selection.

Selection Focus

Chosen for hybrid frame, clean terpene expression and consistent yield across the population.

Pollen / Mother Source

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

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