G13

G13 Strain

G13, also known as "G-13" and "G Thirteen," is a potent indica marijuana strain, surrounded by urban legends suggesting a clandestine origin involving government agencies. While these stories are likely untrue, G13 offers unique effects. Its cannabinoid profile includes THC at 20%, CBD at 1%, and CBG at 1%, with a predominant indica marijuana strain composition (70% indica, 30% sativa). Noteworthy terpenes include myrcene, limonene, and linalool.

The reported effects of G13 encompass euphoria, relaxation, sleepiness, stress relief, anxiety reduction, increased appetite, and tingling sensations. Adverse effects may include dizziness, dry eyes, and dry mouth. Medically, G13 is associated with addressing chronic pain, arthritis, depression, anxiety, insomnia, headaches, and migraines.

Overview

Cannabinoids

THC: 20%
CBD: 1%
CBG: 1%

Strain Types

Indica: 70%
Sativa: 30%

Terpenes

Beta-Caryophyllene
Myrcene
Limonene
Linalool

Flavonoids

While cannabis flavonoids are not consistently tested, it is probable that G13 includes anthocyanins and cannflavins A, B, and C. The flavor profile hints at the presence of naringin and aromadendrene.

Effects

G13 has been reported to have the following effects:

  • Euphoric

  • Relaxed

  • Sleepy

  • Stress

  • Anxiety

  • Hungry

  • Tingly

The following adverse effects have also been reported:

  • Dry Eyes

  • Dry Mouth

  • Dizziness

Medical Applications

G13 is reported to help the following conditions

 
Growing

Height

When cultivated indoors, plants from these cannabis seeds maintain a relatively short stature, averaging between 80 and 100 cm in height. Outdoors, in a garden setting, G13 remains highly manageable, with plants reaching a maximum length of 110 cm.

Humidity and Temperature

Maintain daytime temperatures between 68°F-80°F and keep nighttime temperatures 7°F-9°F cooler to cultivate G13 Autoflower plants successfully. These plants thrive in low humidity conditions.

Flowering

Indoor growers using G13 feminized seeds can expect a flowering period of approximately 8-9 weeks before the buds are ready for enjoyment. For outdoor cultivation in the Northern Hemisphere, harvesting can take place in October, typically after 56 to 63 days of flowering when the buds are fully ripe.

FAQ’s

  • G13 is considered moderately potent, with an average THC level of 20%. Caution is advised, especially when addressing symptoms of stress and anxiety, as even moderate doses may induce paranoia.

  • G13 is well-suited for hydroponic systems and responds favorably to training methods like the "screen of green" (SCROG). Topping the plants in the early vegetative stage encourages lateral shoot production, enhancing yields. Trimming larger fan leaves is essential for improved light penetration and air circulation

  • G13 thrives in a warmer outdoor climate. To prevent mold, maintain relative humidity between 40%-60% in the vegetative phase, dropping it to 30%-40% during flowering. Temperature-wise, aim for a range of 71-82°F (22-28°C). The flowering period typically spans around nine weeks, although some growers report successful harvests at approximately seven weeks.

Headshot of Steven Fiore, MD

This article has been reviewed by Steven Fiore, MD.

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