Jack the Ripper

The information presented on this page is intended solely for descriptive purposes and should not be considered a review or medical advice. The actual effects of the cannabis strain may vary. It is important to use marijuana responsibly. We recommend that you consult a healthcare professional before adding cannabis to your health regimen.

Quick info

Distinctive terpenes
Terpinolene, linalool, limonene
Helps with
Stress, anxiety, depression
Ease of growing
When to use






Sativa Indica

Effects & Usage



Jack the Ripper, affectionately known as JTR, is a Sativa-dominant tour de force from the breeders at Subcool’s The Dank. With THC levels that can ascend into the upper 20s – ranging at 15-20% on average – JTR is a powerhouse that invigorates the mind with an energetic and creative buzz.

It is a popular, award-winning Sativa cultivar that is a favourite in the cannabis community.


The onset of Jack the Ripper is quick and commanding, with users reporting an immediate surge of energy that can spark creativity and an uplifted mood. The cerebral high is marked by clarity and focus, making it an ideal strain for tasks that require a sharp mind.

Its stimulating effects make it an excellent choice for daytime use, providing an uplifted state that can inspire creativity and a zest for life.

Many cannabis enthusiasts use Jack the Ripper for brainstorming, artistic creation, and problem-solving. It’s also a favoured choice for social situations where conversations flow more freely and joyfully.


For medical cannabis patients, JTR offers a multifaceted approach to wellness. The strain’s ability to combat stress is one of its most lauded attributes, providing a cerebral lift that can alleviate the weight of chronic stress. Its anxiolytic effects are equally beneficial, helping to soothe the nerves and calm the mind, which can be particularly useful for those with anxiety disorders seeking a natural form of relief.

Side effects

Despite its many benefits, Jack the Ripper does come with a caveat regarding its potency. Novices should be cautious as it can induce paranoia, a rapid heartbeat, or anxiety when consumed in high doses. Some users may also experience dry mouth and headaches, so staying hydrated is recommended.

Taste & Smell


Aesthetically, JTR presents with dense, resinous buds that shine with a coat of sticky trichomes. Its flavour profile is a complex tapestry of sharp lemon and sweet, tropical undertones complemented by a piney freshness.

The pungent aroma of lemon is forefront, with notes of diesel and a hint of earthiness that rounds out the sensory experience.



Jack the Ripper’s genetic lineage is as formidable as its name suggests. A product of Subcool’s The Dank, it was made by crossing Jack’s Cleaner with Space Quee. Its genetic makeup is a melting pot of cannabis royalty that includes HazeNorthern Lights, Shiva Skunk, and Romulan.

This diverse heritage contributes to JTR’s potent effects, robust growth patterns, and significant resin production.

Growing conditions

Growing Jack the Ripper presents a moderate challenge, suitable for cultivators with some experience. The strain flourishes under a photoperiod flowering regime and typically reaches harvest in 8-9 weeks.

Plants can grow tall, especially outdoors, where they can fully express their sativa genetics. Indoor yields are described as slightly below average, so optimising the grow space and conditions is key to achieving the best results.