G13

5 Feminized Photoperiod Seeds

The origins of G13 have been debated for decades, with one of cannabis culture’s most enduring urban legends tracing it back to a secret government breeding program. According to the story, researchers at the University of Mississippi were developing exceptionally potent cannabis in the 1960s when a single cutting was allegedly taken from the facility and passed into underground growing circles. While the story has never been verified, it has become an inseparable part of G13’s history.

Known for its potency and classic indica characteristics, G13 produces dense, resin-coated flowers with a pungent, earthy aroma accented by pine, wood, and subtle skunky notes. Plants develop a sturdy, compact structure with thick, dark green buds, amber pistils, and a heavy coating of frosty trichomes. With high yield potential and a flowering time of approximately 10–12 weeks, G13 offers plenty of appeal beyond its unusual history.

The effects begin with an uplifting wave of euphoria and a brief burst of mental energy before giving way to deep, full-body relaxation. As the heavier indica effects settle in, G13 becomes increasingly calming and sleepy, making it particularly well suited to slower evenings. Its powerful effects, traditional indica character, and mysterious origins have kept G13 a recognizable name among cannabis enthusiasts for decades.

• Plant Type: Indica-dominant Hybrid
• THC: 15–20%
• Flavors: Earthy, Pine, Woody
• Dominant Terpene: Myrcene
• Effects: Euphoric, Relaxed, Happy, Sleepy
• Genetics: Unknown
• Flowering Style: Photoperiod
• Flowering Time: 10–12 Weeks
• Yield: High
• Ideal Growing Conditions: Indoor, Outdoor, Greenhouse