
9 Pound Hammer Auto
A indica testing at 23% THC, 9 Pound Hammer Auto is reported relaxed, sleepy, happy. 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 2026-02-25 on 475 seeds.
About 9 Pound Hammer Auto
The way to plan 9 Pound Hammer is backwards from the day you intend to cut, with up to 350 g/m2 per square metre indoors and up to 450 g/plant per plant outdoors as the figures you are working toward, at 23% THC. Count 55-65 days back from that date and you have your flip date. Most of the final weight lands between weeks 5 and 8, when calyxes stack fastest and trichome cover goes from patchy to complete. Outdoors in the Southern Hemisphere you want that fattening phase falling in February while the days are still long, which puts a late-March cut about right for most of the country.
Where the Weight Actually Comes From
Yield on 9 Pound Hammer — the up to 350 g/m2 indoors and up to 450 g/plant outdoors quoted above — is decided in three short stretches of the 55-65 days bloom rather than evenly across it.
The first ten days after the flip. Whatever stretch happens here sets your canopy, and an uneven canopy wastes light for the remainder of the grow. Stretch is modest at 20-30%. Strip the lower fan leaves around day seven and that energy goes into bud sites instead.
Weeks three to five. This is when myrcene production climbs, and it answers to the gap between day and night temperature rather than to either number on its own. Keep at least 6-8°C between them. Outdoor growers in the interior provinces get that swing free in March and April; indoors, aim for 25-26°C lights-on against 18-20°C lights-off, with potassium-led bloom feed at EC 1.6-1.8.
The last ten to fourteen days. Stop feeding, flush with pH-corrected water, and read trichomes daily under a 60x loupe. Cut at 15-20% amber for the heavy end of what this genetics does. Outdoors that usually lands between late March and mid-April.
Difficulty: easy. In flower for 55-65 days. Stands Short. Indoors it returns up to 350 g/m2. Outdoors, up to 450 g/plant a plant.
Aroma, Flavour and Effect
The first thing 9 Pound Hammer does at 23% THC is coat the palate with a deep, musky earthiness. The relaxed, sleepy, happy effects follow within minutes, starting as weight behind the eyes and working down through the shoulders and limbs. Fifteen minutes in there is a physical stillness — not sedation so much as a disinclination to get up. Two to three hours at a moderate dose. Caryophyllene sits underneath all of it, adding a grounding warmth that keeps the whole thing anchored.
The Aromatic Three
Leading with Myrcene, then Caryophyllene, and Linalool underneath. How this combination survives the move from flower to vapour or smoke is not a given. Held low, at 180-188°C, the caryophyllene and linalool notes stay legible with myrcene underneath them. Run it hotter, or burn it, and the three collapse into one — still pleasant, but without the separation that makes this cultivar worth paying attention to.
Suitability and Recommendations
Who does well with 9 Pound Hammer? People growing on flat balconies from Cape Town to Johannesburg. Smallholders after a fast outdoor crop. Indoor growers short on headroom. Autoflowering genetics run to their own clock, so there is no light schedule to hold, no worrying about light leaks, and harvest lands 10-12 weeks from germination whatever the season is doing. It is rated easy, which in practice means a moderate learning curve that rewards attention without needing laboratory conditions. Sent nationwide in plain, unbranded packaging, with sourced grow data on every strain page.
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9 Pound Hammer Auto — 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 Royal King Genetics autoflower stabilisation on 9 Pound Hammer. Auto trigger time, finish window and bud-to-leaf ratio all run uniform — no photo-hybrid surprises in the pack.
Stabilise the recessive ruderalis trait in 9 Pound Hammer for uniform auto-trigger.
Chosen for trichome coverage, stout structure and consistent flowering time across the pack.
Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.