Blue Diamond Feminised
A sativa testing at 22% THC, Blue Diamond Feminised is reported euphoric, creative, calm. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.
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 2026-09-05 on 100 seeds.
About Blue Diamond Feminised
Will Blue Diamond handle a South African summer outdoors? Yes. Put this 14/86 sativa in the ground between September and November and you will be cutting from March to May. It will stretch, and it will use every hour of a long summer day, so give it room early rather than trying to contain it later. Bloom runs 50-60 days, placing harvest between March and May across most provinces.
What yield is realistic? up to 400 g/m2 indoors is reachable under decent LED with steady feeding. Outdoors, up to 400 g/plant a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 22% THC with pinene 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.
The Aromatic Three
Leading with Pinene, then Limonene, and Caryophyllene underneath.
Difficulty: intermediate. In flower for 50-60 days. Stands Medium. Indoors it returns up to 400 g/m2. Outdoors, up to 400 g/plant a plant.
Effects
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Blue Diamond Feminised — Breeder Information
Royal King GeneticsRecreated 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.
F3 stabilisation on the Blue Diamond cross. Three rounds of selection have brought the population to roughly 80% trait homogeneity — a small fraction of pheno variance is still present and is being culled in the next cycle.
Stabilise Blue Diamond across three rounds toward F4 production-ready stock.
Chosen for terpene saturation, sativa vigour and a workable finish time despite long-flowering genetics.
Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.