Description
SUBCOOL SEEDS > JACK THE RIPPER F3 (JACK THE RIPPER F2 (IRIE GENETICS PRESERVED STOCK) X JACK THE RIPPER F2)
The next generation of Subcool’s infamous lemon sativa — stabilized, resin-loaded, and truer than ever to the original vision.
Lineage: Jack the Ripper F2 (Irie Genetics preserved stock) × Jack the Ripper F2
Flowering Time: 9–10 weeks
Indica/Sativa: 70/30 Sativa-Leaning Hybrid
Height: Medium to tall with strong lateral branching; Xmas tree structure dominates
Phenotypes: Consistent Xmas tree-style plants with glassy resin coverage and sharp lemon terps
Yield: Above-average for a strain of this potency; colas stack heavy and require support late flower
Aroma/Flavor: Loud lemon-cleaner nose with hashy citrus funk
High Type: The legendary “shit-eating grin” ride — uplifting, cerebral, fast, and long-lasting; not for lightweights
Best Way to Grow: Top and train early; thrives indoors with strong lighting and controlled canopy spread
Summary:
Jack the Ripper F3 was rebuilt as a preservation project after Subcool’s passing. Original JTR F1 stock was entrusted to Irie Genetics, who returned preserved F2 keepers. From those F2s, we selected uniform, resin-heavy Xmas tree phenos and performed a seed increase. The result is a faithful continuation of the Subcool legacy: a potent, lemon-fueled sativa with glassy frost, consistency across the canopy, and that unmistakable JTR grin-inducing high.
Regular M/F Photoperiod
