The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 3261Hybrid

Jack The Ripper Bx by Subcools The Dank

Jack's Cleaner × Space Queen

Jack The Ripper BX, a creation by SubCool's The Dank, is a stabilized hybrid designed to consistently deliver the desirable traits of its celebrated predecessor. This backcross aims to refine the original's clarity, speed, and potent citrus aroma, making it a reliable choice for daytime use.

EffectsEnergetic Euphoric Focused Uplifting Clear-headed
AromaLemonCitrusPineTropical CandyFloralHerbalEarthy

Appearance

Jack The Ripper BX typically produces lime to spring-green flowers adorned with bright gold-orange pistils and a dense, silvery trichome coating. The buds are medium to large, often forming elongated, spear-like shapes rather than compact nuggets, and may exhibit mild foxtailing under intense lighting. Its favorable calyx-to-leaf ratio simplifies trimming and enhances visual appeal, with a resin layer that gives the surface a glistening appearance when grown and cured properly.

The structure features tightly stacked bracts along the cola, creating segmented towers. Minimal sugar leaves after trimming and well-cured buds often reveal intact, sparkling trichome heads. While generally green, cooler nighttime temperatures late in the flowering stage can introduce subtle lime-to-chartreuse contrasts, though purple hues are uncommon.

Aroma & Flavor

The aroma of Jack The Ripper BX is characterized by a sharp, zesty citrus top note, evoking lemon peel, cleaner, and lime soda. Underlying this is a sweet tropical layer, hinting at mango and pineapple, a characteristic likely inherited from its lineage. A brisk pine and pepper finish provides a clean counterpoint, preventing the profile from becoming overly sweet.

Upon grinding, the aromatic profile becomes notably brighter as trapped terpenes are released. The sensory experience is often described as uplifting and crisp, with flavors mirroring the aroma: predominantly lemon and citrus, complemented by tropical sweetness and a subtle herbal or earthy undertone.

Effects

Consumers often report that Jack The Ripper BX delivers an immediate uplift, providing an energetic and clear-headed experience. The effects are generally described as euphoric and focused, making it a popular choice for daytime activities or tasks requiring concentration. It is noted for providing intensity without inducing heavy sedation or couchlock.

Terpenes & Cannabinoids

While specific lab results vary, Jack The Ripper BX is generally characterized by a THC content ranging from 18-24% and CBD levels below 1%. The terpene profile is notable for its dominance of terpinolene, which contributes significantly to the strain's signature lemon-cleaner aroma. Other terpenes commonly found include ocimene, limonene, beta-caryophyllene, and pinene, collectively creating a complex aromatic bouquet.

Origins & Lineage

Jack The Ripper BX originates from the breeding program of SubCool's The Dank (formerly TGA Genetics). It is a backcross of the original Jack The Ripper (JTR), a strain itself resulting from the cross of Jack's Cleaner and Space Queen. The BX designation signifies an effort to stabilize and enhance the most desirable traits of the original JTR, particularly its potent citrus scent, fast flowering time, and clear, sativa-dominant effects.

The backcrossing process involves crossing JTR with one of its own parent lines or an elite JTR male to concentrate genetics towards the preferred phenotype. This aims to increase the consistency of its characteristic lemon aroma, energetic high, and sativa morphology, while reducing undesirable variations that may have appeared in earlier generations.

Growing

Jack The Ripper BX is recognized for its relatively fast flowering time, typically finishing within 8-9 weeks. It generally exhibits a sativa-leaning structure, characterized by long internodes and a tendency to stretch significantly after the flowering flip. The plants tend to develop large, spear-shaped colas with substantial resin production, making them suitable for both flower and extract markets.

The strain is valued for its resin density and a desirable calyx-to-leaf ratio, which aids in trimming. While generally robust, growers may encounter some phenotype variation, though the backcross aims to improve uniformity. It is considered moderately difficult to grow, requiring attention to nutrient levels and environmental conditions to maximize its potential.

Frequently asked questions

What is the THC and CBD content of Jack The Ripper BX?
Jack The Ripper BX typically contains 18-24% THC and less than 1% CBD.
What are the dominant terpenes in Jack The Ripper BX?
The dominant terpenes are generally terpinolene, ocimene, limonene, beta-caryophyllene, and pinene.
What kind of effects can I expect from Jack The Ripper BX?
Users often experience energetic, euphoric, and focused effects, making it suitable for daytime use.
What is the lineage of Jack The Ripper BX?
It is a backcross of Jack The Ripper, which was created by crossing Jack's Cleaner and Space Queen.