Jack The Ripper: The Serial Killer of Lethargy
Jack The Ripper: The Serial Killer of Lethargy
Strain Overview
Type: Sativa-Dominant Hybrid (70% Sativa / 30% Indica)
Origin: Oregon / Washington (Bred by the late, legendary Subcool of TGA Genetics)
Lineage: Jack’s Cleaner x Space Queen
THC Content: 15% – 20% (High THCV Potential)
Dominant Terpenes: Terpinolene, Pinene, Limonene
Key Effects: Racy Energy, Visual/Psychedelic Stimulation, Focus, Mood Elevation
In a market saturated with high-THC Indicas that glue you to the couch, Jack The Ripper (often abbreviated as JTR) stands as a defiant, electric bolt of energy. Bred by the late cannabis icon Subcool (The Green Avengers / TGA Genetics), this strain wasn't named for violence—it was named because it absolutely shreds through lethargy and depression.
JTR is famous for being one of the fastest-hitting and most "psychedelic" Sativas available. It is known to contain significant levels of THCV (Tetrahydrocannabivarin), a cannabinoid that acts like a sports car’s turbo button for the high, creating a racy, visual experience that is unlike your standard "haze."
If you are looking for a morning coffee replacement or a strain to spark a creative breakthrough, Jack The Ripper is the sharpest tool in the shed.
History and Lineage: A Subcool Masterpiece
Jack The Ripper is widely considered one of the crown jewels of the TGA Genetics catalog. It represents the perfect fusion of old-school Haze power and modern resin production.
The Genetic Cross
Jack’s Cleaner (The Mother): A legendary clone-only strain (likely a Pluton x Lamb’s Bread x Purple Haze cross) known for its biting lemon-bleach aroma and soaring high.
Space Queen (The Father): A cross of Romulan and Cinderella 99. This male (known as "The Dude") added fruitiness, speed to the flowering time, and incredible resin production.
The "Killer" Reputation: Subcool named it Jack The Ripper partly as a nod to its parent (Jack's Cleaner) and partly because of its potency. It was the first strain that many growers reported as having a "visual" high, where lights seemed brighter and tracers appeared in peripheral vision.
Terpene Profile: Lemon Sol and Mango Haze
Open a jar of JTR, and you are hit with a scent that is sharp, acidic, and undeniably loud. It wakes up the sinuses immediately.
Dominant Terpenes
Terpinolene (The Haze): This is the primary driver of the scent. It provides a complex, fresh aroma of apples, pine, and floral herbs. It is often found in "racy" Sativas.
Limonene (The Cleaner): True to its mother’s name (Jack’s Cleaner), JTR reeks of industrial-strength lemon floor cleaner.
Pinene (The Forest): Adds a sharp needle-pine scent that contributes to the strain's ability to improve focus and alertness.
Flavor Notes:
The Inhale: Intense sour lemon candy and pine sap. It is crisp and refreshing.
The Exhale: The flavor deepens into a spicy, tropical mango and damp earth profile, leaving a lingering tartness on the tongue.
Jack The Ripper Strain Effects: The "Zoomies"
This is not a strain for relaxing. It is a strain for doing.
The Psychedelic Sativa
The Onset: It hits incredibly fast. Within minutes, users report a "rush" sensation in the chest and head. Heart rate may increase slightly (which can trigger anxiety in those prone to panic attacks).
The Visuals: Colors appear more saturated. Music sounds more detailed. It creates a "high-definition" filter for reality.
The Crash-Free Finish: Unlike sugar-rush strains that leave you tired, JTR tends to taper off gently, leaving you clear-headed but relaxed.
Warning: Because of the THCV content and high Limonene/Terpinolene profile, JTR can be anxiety-inducing for novices. If you are prone to paranoia, start with a very small dose.
Medical Benefits of Jack The Ripper
JTR is a functional medicine. It allows patients to treat their symptoms without losing their ability to work or socialize.
Top Medical Uses:
Depression and Apathy: It is essentially a mood-stabilizing rocket fuel. It forces a perspective shift and provides energy to get out of bed.
Fatigue: It is superior to caffeine for many users dealing with chronic fatigue syndrome.
ADHD/Focus: In the right dose, the stimulating effects can help zone in on complex tasks.
Nausea: The lemon terpenes are excellent for settling stomachs.
Growing Jack The Ripper: The Resin Factory
One of the reasons TGA Genetics became famous was the stability of their seeds. JTR is a grower’s favorite because it is fast and frosty.
Growth Structure
The Look: JTR plants are not huge stretchers like pure Hazes. They grow medium-tall but produce incredibly resinous, spear-shaped colas.
The Speed: It is an incredibly fast finisher for a Sativa dominant strain, often ready for harvest in just 8 weeks.
The "Sugar": The fan leaves are often covered in trichomes (sugar leaves), making this strain excellent for making bubble hash or concentrates.
Grower’s Tip: The plant does not like to be heavily fed. Go light on the nutrients, especially Nitrogen, in the flowering stage to preserve the delicate lemon terpenes.
Final Verdict: Is Jack The Ripper Right for You?
Jack The Ripper is a tribute to the "Haze" days of the past, updated for the modern smoker who wants flavor and speed. It is a strain that demands activity.
You should choose Jack The Ripper if:
You want a Sativa that feels like an energy drink.
You are looking for "visual" or psychedelic cannabis effects.
You love sharp, sour lemon and pine flavors.
You need to clean your house, go for a run, or write a paper.