Jack the Ripper Feminised
Jack the Ripper Feminised for South African growers — sativa genetics at 18% THC, reported as creative, energetic, happy. 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 100 seeds.
About Jack the Ripper Feminised
Will Jack the Ripper handle a South African summer outdoors? Yes. Put this 25/75 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 8-9 weeks, placing harvest between March and May across most provinces.
What yield is realistic? Up to 200g/m² indoors is reachable under decent LED with steady feeding. Outdoors, Up to 400 gr a plant is normal in 50 litre pots or straight into prepared ground in full sun. At 18% THC with terpinolene 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 Terpinolene, then Limonene, and Ocimene underneath.
Difficulty: medium. In flower for 8-9 weeks. Stands Medium. Indoors it returns Up to 200g/m². Outdoors, Up to 400 gr a plant.
Effects
Reach For It When
Strain Type
At a Glance
In the Packet
Feminised Premium
Seeds
the source
inside
number
Related Strains
Valley Ghash Feminised
Valley Ghash Feminised: hybrid cannabis seeds picked for South African conditions. 19% THC, with relaxed, happy, euphoric the effects most often reported. Posted discreetly countrywide.
Orange Crush Feminised
Buy Orange Crush Feminised seeds in South Africa. Sativa · 20% THC · creative, energetic, happy. Every figure on this page is sourced, and every order ships unbranded.
Power Plant Feminised
Power Plant Feminised: sativa cannabis seeds picked for South African conditions. 19% THC, with happy, energetic, creative the effects most often reported. Posted discreetly countrywide.
Alpha Blue Feminised
A sativa testing at 20% THC, Alpha Blue Feminised is reported happy, energetic, creative. Grown right across the country, from the Cape to the Lowveld. Discreet nationwide delivery and a germination guarantee.
Jack the Ripper 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.
Five generations of inbred selection on the original 1990s landrace-derived Jack the Ripper cuts. We were not chasing a redesign — we locked the finished-flower potency that earned this cultivar its reputation. Whatever the next pack throws is what the last pack threw.
Pin down the original 1990s landrace-derived terpene profile in modern seed form.
Chosen for terpene saturation, sativa vigour and a workable finish time despite long-flowering genetics.
Royal King Genetics in-house mother stock — pollen taken from a sibling male drawn from the same selected pheno population.