
9 Pound Hammer Auto
Grow 9 Pound Hammer Auto in New Zealand. Indica genetics testing at 23% THC. Known for relaxed, sleepy, happy effects. Ships discreetly nationwide with sourced grow figures.
Royal King Genetics β first-party test batch
Figures below are from our internal seed-lot QC and verified New Zealand grower submissions, not breeder marketing. Determined from a single batch tested 2026-02-25 on 475 seeds.
About 9 Pound Hammer Auto
Here is what 9 Pound Hammer delivers at harvest: up to 350 g/m2 per square metre indoors, up to 450 g/plant per plant outdoors in New Zealand conditions, with resin production peaking at 23% THC. Those numbers tell a story when you work backwards through the 55-65 days window. The bulk of your final weight accumulates during weeks 5 through 8 β a period where the 66/34 genetics stack calyxes rapidly and trichome coverage shifts from scattered to frosted. Southern Hemisphere outdoor growers targeting a late-March harvest should calculate their flip date (or natural light trigger) accordingly, aiming for buds to enter this critical fattening stage during February when daylight hours are still generous.
Maximising Your Harvest
To reach the upper end of this strain's yield potential (up to 350 g/m2 indoors, up to 450 g/plant outdoors), focus your efforts on three critical windows during the 55-65 days period.
Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Expect modest stretch of 20-30% β a quick defoliation of lower fan leaves at day 7 redirects energy to developing bud sites.
Window 2: Weeks 3-5 of bloom. Myrcene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8Β°C to encourage terpene accumulation β New Zealand autumn evenings (March-April) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26Β°C during lights-on and 18-20Β°C during lights-off. Supplement with potassium-heavy bloom nutrients at EC 1.6-1.8.
Window 3: Final 10-14 days before harvest. Cease all nutrient input and flush with pH-adjusted water. Monitor trichomes daily with a 60x jeweller's loupe β harvest at 15-20% amber for the full-bodied effect this genetics is known for. Southern Hemisphere outdoor growers: this window typically falls in late March through mid-April.
Flowering: 55-65 days. Indoor yield: up to 350 g/m2. Outdoor yield: up to 450 g/plant. Rated intermediate difficulty.
Flavour, Aroma, and Experience
The sensory arc of 9 Pound Hammer unfolds in stages. Initial inhalation at 23% THC brings a deep, musky earthiness that coats the palate. The relaxed, sleepy, happy effects emerge within minutes, beginning as a pleasant heaviness behind the eyes that migrates downward through the shoulders, chest, and limbs. By the fifteen-minute mark, a deep physical stillness sets in β not sedation exactly, but a reluctance to move that makes the couch remarkably appealing. Duration runs 2-3 hours at moderate doses. The caryophyllene secondary terpene adds a distinct layer: a grounding warmth that prevents the experience from feeling unanchored.
Terpene Breakdown
Primary: Myrcene Β· Secondary: Caryophyllene Β· Tertiary: Linalool. Flavour translation from flower to vapour and smoke differs with this terpene combination. Low-temperature vaporisation (180-188Β°C) highlights the caryophyllene and linalool notes whilst keeping myrcene as a foundation. Higher temperatures or combustion flatten the profile into a single-note experience β still pleasant, but lacking the complexity that makes this cultivar genuinely interesting to those who appreciate flavour.
Suitability and Recommendations
Who grows 9 Pound Hammer successfully? Balcony growers in apartment blocks from Auckland to Christchurch. Regional cultivators wanting a quick-turnaround outdoor crop. Indoor growers with limited headroom in small tents. The autoflowering genetics run on their own internal clock β no light schedule adjustments, no stress about light leaks, and harvest arrives 10-12 weeks after germination regardless of the season. Difficulty is rated intermediate, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered nationwide in discreet, unbranded packaging with sourced grow data on every strain page.
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9 Pound Hammer Auto β Breeder Information
Royal King GeneticsBred and stabilised in-house by Royal King Genetics β our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full 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 β 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 β pollen drawn from an internally maintained reversed-female line.