California Grapefruit Feminised
California Grapefruit Feminised for South African growers — hybrid genetics at 12% THC, reported as euphoric, creative, calm. Sourced grow figures on the page, plain packaging, delivered nationwide.
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 2026-09-24 on 450 seeds.
About California Grapefruit Feminised
Days 1 to 14, seed to fourth node: Expect California Grapefruit to crack in roughly 48 hours on damp paper towel and to break soil by day three. Growth is even and unhurried — four solid nodes by day 14, spaced somewhere between the two parent types. Damping off is rare if you hold near 70% humidity through this stage.
Weeks 3 to 6, building the frame: One top at node four and a light tie-down is all it asks for. Six leaders and an even canopy across roughly 70 x 70 cm, then it is ready to flip.
Bloom, weeks 1 to 9: The 39/61 character becomes obvious here. Myrcene usually shows in week three and strengthens from there, with trichome cover visible without a loupe from about week five. Indoor yield: 400–500 g/m². Height: 50–140 cm. Tested at 12% THC. Difficulty: easy.
The Aromatic Three
Leading with Myrcene, then Limonene, and Pinene underneath.
Difficulty: easy. In flower for 8-9 weeks. Stands 50–140 cm. Indoors it returns 400–500 g/m². Outdoors, 400–600 g/plant a plant.
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California Grapefruit 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.
Backcrossed twice to the dominant parental line. California Grapefruit now expresses bud density consistently across the population — what made the original cross interesting is preserved without the pheno-roulette of an unstabilised F1.
Fix parent-cut traits in California Grapefruit without narrowing the population too far.
Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.
Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.