9 Pound Hammer cannabis seeds packaging — Royal King Seeds Ireland
IndicaAuto
THC 23%
😊 Beginner Pick
IndicaAutoflowerIn Stock

9 Pound Hammer Auto

Grow 9 Pound Hammer Auto in Ireland. Indica genetics testing at 23% THC. Known for relaxed, sleepy, happy effects. Ships discreetly nationwide with sourced grow figures.

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€12.32EUR
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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified Irish grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-08 on 100 seeds at 21-24°C.

Germination rate: 96.7% (n=100)
Last QC test date: 2026-09-08
Indoor yield: 465-606 g/m² (avg across 9 verified grower reports)
Outdoor yield, Ireland: 447-640 g/plant (avg across 4 verified grower reports)

About 9 Pound Hammer Auto

Everything about 9 Pound Hammer at harvest follows from one decision, which is when you stop. The figures are up to 350 g/m2 indoors and up to 450 g/plant outdoors, with resin filling towards 23% THC. Weight arrives late on a plant this indica-leaning — the 66/34 split stacks calyxes hard through the middle weeks and then thickens them. Growers who cut on the calendar rather than the glass lose that last stage, and it is the most valuable one.

Where the weight is won

Three parts of the 55-65 days of bloom account for most of the difference between a good result and an average one on a plant rated up to 350 g/m2 indoors and up to 450 g/plant outdoors.

The stretch, days 1-10 after the flip. Canopy height set here decides how evenly light lands for the rest of the run. Twenty to thirty per cent is typical; taking the lowest fans around day seven pushes energy up to the sites that will finish.

Weeks three to five. Myrcene production climbs through this stretch and responds to a 6-8°C gap between lights-on and lights-off. Outdoors an Irish September provides that without help; indoors it has to be built, at roughly 25°C by day and 18-20°C at night. Bloom feed goes potassium-forward around EC 1.6-1.8.

The final fortnight. Feeding stops, plain pH-corrected water goes on, and the loupe comes out daily. Fifteen to twenty per cent amber suits the weight of effect this one is grown for. Outdoors, that falls between late September and mid-October, and the forecast gets a say.

Flowering: 55-65 days. Indoor yield: up to 350 g/m2. Outdoor yield: up to 450 g/plant. Plant height: Short. Rated easy difficulty.

Flavour, aroma and effect

9 Pound Hammer arrives in order. The first draw at 23% THC gives earth and musk, coating rather than sharp. The relaxed, sleepy, happy character follows in minutes, as weight behind the eyes that works down through the shoulders. By a quarter of an hour it reads as physical stillness rather than sedation — a strong disinclination to stand up. Two to three hours at a sensible dose. Caryophyllene underneath contributes warmth that keeps it anchored.

Terpene breakdown

Primary: Myrcene · Secondary: Caryophyllene · Tertiary: Linalool. Temperature decides how much of this profile survives. Low vaporisation at 180-188°C keeps caryophyllene and linalool audible over the myrcene; run it hotter, or burn it, and all three collapse into one note that is pleasant enough and tells you nothing.

Who it suits

Who does well with 9 Pound Hammer? Back-garden and balcony growers in Dublin, Cork and Galway. Anyone who wants a crop dry and put away before the autumn closes in. Indoor growers short of headroom. The autoflowering genetics run to their own clock, so there is no schedule to manage and no anxiety about light leaks. Rated easy, which means a moderate learning curve that rewards attention without needing specialist kit.

Effects

😌Relaxed
72% of people reported feeling Relaxed
😴Sleepy
72% of people reported feeling Sleepy
😊Happy
58% of people reported feeling Happy
🤤Hungry
54% of people reported feeling Hungry
🤗Euphoric
47% of people reported feeling Euphoric
🧘Calm
40% of people reported feeling Calm
🌿Stress Relief
27% of people reported feeling Stress Relief
💆Body High
24% of people reported feeling Body High
😶‍🌫️Sedated
21% of people reported feeling Sedated

Best For

✦ Evening
✦ Relaxation
✦ Sleep Support

Strain Type

Indica 66%Sativa 34%

Strain Data Sheet

🧬THC23% - 26% (High)
🌿LineageGooberry × Hells OG × Jack the Ripper
🔬TypeAutoflower Indica
🌡ClimateAll climates (adaptable)
📅Harvest≈ 10 – 11 weeks from seed (typical)
📏HeightShort
⚖️YieldMedium
🏠Yield Indoorup to 350 g/m2
🌳Yield Outdoorup to 450 g/plant
⏱Flowering Time55-65 days

Packaging

Resealable +
RK
Royal King Seeds
Autoflowering
Regular
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers are responsible for complying with the law where they live.
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9 Pound Hammer Auto
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🛡️Aluminium interior lining
🏷️Protective sticker
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🔢Scratchable serial number

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9 Pound Hammer Auto — Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics — 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.

Stabilisation Level
F5
Generations
5+
Breeding Programme
Autoflower Programme — five-generation auto trait fixing
Stabilisation Notes — What This Means for Your Grow

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.

Breeding Goal

Stabilise the recessive ruderalis trait in 9 Pound Hammer for uniform auto-trigger.

Selection Focus

Chosen for trichome coverage, stout structure and consistent flowering time across the pack.

Pollen / Mother Source

Royal King Genetics select-mother programme — pollen drawn from an internally maintained reversed-female line.

Last Batch QC Verified
17 September 2026· 99%+ germination