SubCool Seeds Jack the Ripper F3

Strain Overview

Jack the Ripper F3 Regular Cannabis Seeds by Subcool Seeds are a refined preservation of the legendary citrus-forward Sativa hybrid. Jack the Ripper F3 seeds maintain the classic lemon-cleaner aroma, heavy resin production, vigorous growth, and distinctive character of the original line while offering improved uniformity and structure.

Genetics and Lineage

Jack the Ripper F3 seeds are based on the original Jack’s Cleaner x Space Queen lineage. Preserved Jack the Ripper F2 genetics from Irie Genetics were paired with another JTR F2 selection to reinforce structural stability, terpene expression, resin production, and genetic consistency. The result is a 70% Sativa / 30% Indica hybrid.

Growth and Appearance

Jack the Ripper F3 plants develop a classic Christmas-tree structure with a strong central cola and sturdy lateral branches. Medium-to-tall plants produce dense, heavily frosted colas with excellent stacking and above-average yield potential. Jack the Ripper F3 seeds perform well indoors and outdoors and may benefit from branch support late in flowering.

Flowering and Cultivation

Jack the Ripper F3 seeds typically flower in 9–10 weeks. Plants respond well to early topping, low-stress training, and netting to manage height and create an even canopy. Outdoors, they thrive in warm, sunny climates and develop vigorous growth with rapidly swelling colas toward harvest.

Flavor and Aroma

Jack the Ripper F3 seeds produce an intense lemon-cleaner aroma with layers of citrus rind, hash, spice, pine, and occasional fuel notes. The flavor follows the same sharp citrus profile, combining bright lemon with earthy, hash-forward and lightly spicy undertones.

Seed Type and Breeder

Jack the Ripper F3 seeds are regular cannabis seeds from Subcool Seeds. Developed as a preservation project using safeguarded Jack the Ripper F2 genetics, this generation honors the original line while emphasizing resin production, vigorous growth, distinctive lemon terpenes, and improved consistency.