9 Pound Hammer
Also known as: 9lb Hammer, Nine Pound Hammer
Breeder: JinxProof Genetics
9 Pound Hammer is a heavy-hitting indica-dominant hybrid bred by JinxProof Genetics in Washington State around 2010. Created by crossing Gooberry with Jesus OG Kush, the strain was designed to amplify Gooberry's extraordinary grape and melon terpenes while dramatically improving yield and vigor. Named for its knockout sedative potency, it has won multiple Cannabis Cup awards and spawned over 63 documented descendant strains. Originally distributed through TGA Subcool Seeds until 2019, 9 Pound Hammer is now available exclusively from JinxProof's Dank Bank as the "Official Creator's Cut." The Gooberry parent (Afgooey x Blackberry) brought world-class fruity terpenes and autumn coloration but historically modest yields; the introduction of Jesus OG Kush lineage amplified production and structural vigor without sacrificing the signature grape-melon-lime essence. The strain tests between 18 and 27 percent THC with approximately 1 percent CBG. Its terpene profile is led by myrcene and alpha-pinene in an unusually close split, with caryophyllene, phellandrene, eucalyptol, and terpinolene rounding out the ensemble — a combination that produces the deeply sedating, full-bodied stone for which the cultivar is named.
Lineage & Genetics
Cross: Gooberry x Jesus OG Kush
Gooberry (Afgoo x Blackberry) is an indica-dominant strain prized for its sticky, resinous buds, sweet fruity berry flavor, and deeply sedating effects — it was Jinxproof's favorite strain at the time but had modest yields. Jesus OG Kush (Hells Angel OG x Jack the Ripper) was bred by TGA Subcool Seeds as an indica-leaning hybrid with narcotic pain-relieving effects, tall plants, and heavy yields — it served as the structural and yield-enhancing parent. Hells Angel OG contributes intense potency and fuel-forward aromatics from its OG Kush lineage. Jack the Ripper adds sativa energy, lemon aromatics, and heavy resin production with notable THCV content.
Terpene Profile
Myrcene — Earthy, musky, and herbal — drives the sedative body-heavy effects and amplifies THC's analgesic properties
Caryophyllene — Spicy, peppery, woody — provides anti-inflammatory activity via CB2 receptor interaction and contributes to pain management
Limonene — Citrus and lime brightness — responsible for mood elevation, anxiety relief, and the signature lime note on exhale
Pinene — Fresh pine and forest notes — adds mental clarity and earthy depth to the terpene profile
Linalool — Floral lavender — reinforces the sedative and calming qualities
Humulene — Earthy, woody, herbal depth in trace amounts
Aroma: Intense burst of sweet grape candy backed by earthy diesel, with secondary notes of ripe mixed berries, cantaloupe, lime zest, and damp earth. Subtle piney, skunky undertones from the OG Kush lineage sit beneath the fruit sweetness — described as 'grape Hi-Chew candy meets fuel station.'
Flavor: Sweet grape candy, mixed berry, and melon on the inhale with lime brightness. The exhale reveals earthy pine with lingering grape candy residue. Smooth berry-lime aftertaste with diesel undertones. Thick but smooth smoke that is not harsh.
Effects & Experience
Onset: Warm euphoric buzz with uplifted mood and gentle cerebral clarity within minutes, courtesy of the Jack the Ripper genetics providing a brief sativa window
The 'hammer falls' around 20 minutes in — full-body relaxation arrives as heavy sedation takes hold. Muscles release tension, strong couch-lock sets in, followed by deep sleepiness and significant appetite stimulation
Duration: 2-4 hours, with sedation potentially lasting into sleep for several more hours
Commonly Reported Uses
Grower's Notes
Nine Pound Hammer rewards patient growers with surprisingly little drama. Bred by JinxProof Genetics from Gooberry and Jesus OG Kush, this indica-dominant hybrid carries the structural vigor of its Kush parentage and the resin-drenched, candy-colored finish of its Gooberry side — a combination that has made it a commercial favorite since its emergence from the Pacific Northwest in the early 2010s.
The plant grows with classic Kush architecture
short internodal spacing, thick stems, and broad fan leaves that shade lower sites if left unchecked. Topping once at the fourth node breaks apical dominance and encourages four to six even colas. It responds exceptionally well to LST and SCROG. After the flip to 12/12, expect a modest stretch of 30 to 50 percent — contained enough for tents and closets. Mature indoor plants stay in the 30- to 48-inch range.
Flowering moves fast. JinxProof lists 50 to 60 days, and most growers confirm that Gooberry-dominant phenotypes finish around 55 to 60 days. Trichome production starts early — frost is often visible by mid-veg — and by week 5 of flower the resin coverage is extraordinary. The most desirable phenotype produces rock-hard, knuckle-shaped buds with oversized calyxes smothered in resin, the hallmark structure that gave the strain its name. Yields are commercial-grade: 400 to 500 grams per square meter indoors under optimized SCROG with 800 to 1,000 PPFD, or 450 to 700 grams per plant outdoors with harvest landing in late September to early October.
Nine Pound Hammer is a medium
to-heavy feeder in mid-flower but notably sensitive to overfeeding nitrogen past week one of flower. Transition to bloom nutrients within seven days of pistils and ramp phosphorus and potassium earlier than with slower strains. Cal-mag supplementation is essential in coco, where one grower noted the strain "lagged behind all other plants" without it. It performs well in soil and coco, though a well-draining mix with 20 to 30 percent perlite is advisable. Organic soil growers report richer terpene expression when top-dressing with compost and worm castings through veg.
Daytime temperatures of 72 to 80 degrees Fahrenheit work well, with an 8- to 10-degree nighttime drop in late flower to trigger anthocyanin expression — deep purples, near-black sugar leaf highlights, and autumn-colored foliage surrounding frosty colas. Humidity should run 55 to 65 percent in veg, dropping to 40 to 50 percent in flower. Target 600 to 800 PPFD and a DLI of 35 to 45 mol per square meter per day. The strain carries good natural resistance to powdery mildew, but the dense bud structure makes botrytis the primary threat. Lollipoping and oscillating fan coverage are non-negotiable.
The extreme resin production makes 9 Pound Hammer a natural candidate for solventless processing. The large calyx structures wash well; growers pursuing bubble hash from fresh-frozen material in this resin class typically see returns of 15 to 20 percent. Dense buds hold moisture longer than airy flowers, so a slow 10- to 14-day dry at 60 degrees and 60 percent humidity is essential, followed by a minimum four-week cure in glass jars. The signature grape-candy and melon flavors — described by JinxProof as "Hi-Chew-like" — simply do not emerge without patience.
History & Origin
Created by Jinxproof around 2010 in Washington State, 9 Pound Hammer was bred to solve Gooberry's one weakness — modest yields — while preserving its extraordinary grape and melon terpenes. By introducing Jesus OG Kush from TGA Subcool Seeds, Jinxproof achieved both structural superiority and enhanced production. The strain was distributed through TGA Genetics until 2019, then returned exclusively to JinxProof's own Dank Bank. JinxProof Genetics is a family-run business that donates a portion of monthly profits to NW Families for Autism. The name references the strain's knockout potency — it hits like being struck by a nine-pound sledgehammer. With 63+ documented descendants and multiple Cup victories, it has become a staple in Pacific Northwest dispensaries and medical programs nationwide.
Awards & Recognition
- ●1st Place Indica — Santa Cruz Cup 2014 (submitted by Jinxproof Genetics)
- ●Winner — High Times Cannabis Cup Seattle 2014
- ●1st Place, 2017 High Times Michigan Cannabis Cup — Best Indica
Notable Crosses
Strains bred using 9 Pound Hammer as a parent:
Frequently Asked Questions
7 common questions about 9 Pound Hammer
What is 9 Pound Hammer and what are its genetics?
9 Pound Hammer is a indica cannabis strain (80/20 Indica-dominant) bred by JinxProof Genetics. It is a cross of Gooberry x Jesus OG Kush, testing at 17-27% THC. 9 Pound Hammer is a heavy-hitting indica-dominant hybrid bred by JinxProof Genetics in Washington State around 2010. Created by crossing Gooberry with Jesus OG Kush, the strain was designed to amplify Gooberry's extraordinary grape and melon terpenes while dramatically improving yield and vigor.
What does 9 Pound Hammer smell and taste like?
9 Pound Hammer's dominant terpenes are Myrcene, Caryophyllene. The aroma is described as intense burst of sweet grape candy backed by earthy diesel, with secondary notes of ripe mixed berries, cantaloupe, lime zest, and damp earth. subtle piney, skunky undertones from the og kush lineage sit beneath the fruit sweetness — described as 'grape hi-chew candy meets fuel station.'. The flavor profile features sweet grape candy, mixed berry, and melon on the inhale with lime brightness. the exhale reveals earthy pine with lingering grape candy residue. smooth berry-lime aftertaste with diesel undertones. thick but smooth smoke that is not harsh..
What are the effects of 9 Pound Hammer?
Warm euphoric buzz with uplifted mood and gentle cerebral clarity within minutes, courtesy of the Jack the Ripper genetics providing a brief sativa window The 'hammer falls' around 20 minutes in — full-body relaxation arrives as heavy sedation takes hold. Muscles release tension, strong couch-lock sets in, followed by deep sleepiness and significant appetite stimulation. Duration is typically 2-4 hours, with sedation potentially lasting into sleep for several more hours. Commonly reported uses include Chronic pain, Insomnia, Stress and anxiety, PTSD.
How hard is 9 Pound Hammer to grow?
9 Pound Hammer is rated easy to intermediate difficulty. It flowers in 50-60 days, reaches short to medium (30-48 inches indoors) in height, and yields 400-500 g/m² indoors. Best suited for indoor / outdoor environments.
Does 9 Pound Hammer turn purple?
Yes. 9 Pound Hammer is known to express purple coloration, with reported colors including Neon green, Forest green, Purple. Cooler nighttime temperatures during late flowering typically intensify anthocyanin expression.
What strains were bred from 9 Pound Hammer?
9 Pound Hammer has been used as a parent in several notable crosses, including 9lb Punch, 9 Alarm, 9lb Wedding Cake, 9lb Zombie, Safety Meeting. Its genetics contribute to a wide range of modern cultivars.
Has 9 Pound Hammer won any cannabis awards?
Yes. 9 Pound Hammer has received recognition including 1st Place Indica — Santa Cruz Cup 2014 (submitted by Jinxproof Genetics); Winner — High Times Cannabis Cup Seattle 2014; 1st Place, 2017 High Times Michigan Cannabis Cup — Best Indica.
Sources & References (51)
- https://seedfinder.eu/en/strain-info/9lb-hammer/jinxproof-genetics
- https://jinxproofsdankbank.net/shop/current-genetics/indica-cannabis-seeds/9lb-hammer/
- https://www.leafly.com/strains/9-pound-hammer
- https://terpenebeltfarms.com/blogs/9lb-hammer-terpene-profile/
- https://thisiswhyimhigh.com/strains/9-lb-hammer
- https://www.allbud.com/marijuana-strains/indica-dominant-hybrid/9-pound-hammer
- https://royalkingseeds.us/blog/strain-analysis-9-pound-hammer/
- https://strainguide.app/blog/9-pound-hammer-strain-2026-guide/
- https://strainguide.app/blog/9-lb-hammer-strain-effects-thc-terpenes-flavor-profile/
- https://www.mmj.com/learn/strains/nine-pound-hammer/
- https://greybeardseeds.com/product/9-pound-hammer-feminised-seeds/
- https://royalkingseeds.us/strain/9-pound-hammer-feminized
- https://seedbankfinder.com/9lb-hammer-best-indica-cannabis-cup-winner/
- https://seedfinder.eu/en/database/breeder/jinxproof-genetics
- https://www.leafly.ca/strains/jesus-og
- https://seedfinder.eu/en/strain-info/jesus-og/subcools-the-dank
- https://www.alchimiaweb.com/en/jesus-og-product-3936.php
- https://www.leafly.com/strains/gooberry
- https://seedfinder.eu/en/strain-info/gooberry/unknown-or-legendary
- https://dagga.garden/product/jinxproof-9lb-hammer-afgooberry-x-jesus-og/
- https://cannabistraininguniversity.com/strains/9lb-hammer/
- https://www.growerschoiceseeds.us/9-pound-hammer-feminized-cannabis-seeds/
- https://www.leafly.com/brands/tga-subcool/products/tga-subcool-jack-the-ripper
- https://medicaljane.com/review/jack-the-ripper-a-sativa-dominant-hybrid-with-a-tropical-taste/
- https://cannabisnow.com/strain-legends-subcool-talks-20-years-jacks-cleaner/
- https://seedfinder.eu/en/strain-info/9-pound-hammer-x-northern-lights/philosopher-seeds
- https://strainguide.app/blog/9lbs-hammer-strain-the-complete-2026-guide/
- https://www.cropkingseeds.ca/feminized-seeds-canada/9lb-hammer-strain-feminized-marijuana-seeds/
- Grower's Notes cultivation sources:
- https://jinxproofsdankbank.net/shop/current-genetics/indica-cannabis-seeds/9lb-hammer/
- https://leafwell.com/cannabis-strains/9-lb-hammer
- https://seedfinder.eu/en/strain-info/9lb-hammer/jinxproof-genetics
- https://www.leafly.com/strains/9-pound-hammer
- https://www.leafly.ca/strains/9-pound-hammer
- https://dopethc.com/blog/9-lb-hammer-strain-flavor-effects-thc-guide-2025/
- https://royalkingseeds.us/strain/9-pound-hammer-feminized
- https://strainguide.app/blog/9-pound-hammer-strain-2026-guide/
- https://growguide.app/blog/9lb-hammer-strain-grow-guide-for-heavy-yields-knockout-buds/
- https://www.cannaconnection.com/strains/9-pound-hammer
- https://www.ilovegrowingmarijuana.com/strains/9-pound-hammer/
- https://www.allbud.com/marijuana-strains/indica-dominant-hybrid/9-pound-hammer
- https://growdiaries.com/strains/9-pound-hammer
- https://www.cocoforcannabis.com/community/cannabis_strain_reviews/9-lb-hammer-2-by-jinxproof-genetics/
- https://strainguide.app/blog/9lbs-hammer-strain-the-complete-2026-guide/
- https://thisiswhyimhigh.com/strains/9-lb-hammer
- https://blimburnseeds.com/blog/marijuana-crop-guide/how-to-grow-9lb-hammer-strain/
- https://app.jointcommerce.com/blog/category/cannabis-101/9lb-hammer-by-jinxproof-genetics-a-comprehensive-strain-guide/
- https://cannabiscupwinners.com/blog/2020/10/08/santa-cruz-cup-2014/
- https://ganjaunit.com/product/9-pound-hammer/
- https://royalkingseeds.us/blog/strain-analysis-9-pound-hammer/
- https://strngseeds.com/premium-seeds/strng-seeds-9-lb-hammer/
Want to Grow 9 Pound Hammer?
Check our genetics menu for available clones or call us to discuss your growing needs.
