The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 7189Indica

303 Alien by The Fire Department

303 OG-type line × Alien-family donor (possibly Alien Technology or Alien Kush derivative)

303 Alien is a predominantly indica-leaning cannabis cultivar developed by Colorado-based breeder collective The Fire Department. This strain is recognized for its dense buds, potent effects, and a complex aroma profile that combines evergreen and fuel notes. It is often considered a choice for evening relaxation.

May help withStress
AromaCitrusDieselFloralHerbalLemonOrangePepperyPine

Appearance and Bud Structure

Mature 303 Alien flowers are characterized by their compact, dense structure, resembling golf balls or eggs. The calyxes swell and stack tightly, forming substantial top colas and secondary buds. Pistils mature from bright orange to rust, providing a color contrast against a heavy coating of silvery-white trichomes. Sugar leaves are typically small and can display violet or plum tones under cooler finishing conditions, contributing to a visually appealing, premium appearance.

Aroma and Flavor Profile

The dominant aroma of 303 Alien is a blend of evergreen and fuel, often described as pine cleaner mixed with high-octane gas. Initial notes include sharp citrus and lemon-lime zest, underpinned by deeper earthy and hash undertones. Subtle hints of menthol and black pepper may also be present. Depending on the phenotype, some expressions lean towards a sweeter herbal profile, while others emphasize a more aggressive fuel character.

Effects and Conditions

303 Alien is generally regarded as a potent strain with body-focused effects, making it a popular choice for nighttime or end-of-day use. Consumers report a heavy relaxation and a couch-friendly experience. This cultivar has been anecdotally associated with helping to alleviate stress.

Terpenes and Cannabinoids

While specific terpene profiles can vary, common terpenes identified in 303 Alien include Myrcene, Limonene, Caryophyllene, and Pinene. These contribute to its distinct aroma and flavor characteristics. Cannabinoid content typically shows THC levels ranging from 19-26%, with total cannabinoids often in the mid-20s percentage range when grown under optimal conditions.

Cultivation

303 Alien is considered a hardy indoor performer and also translates well to controlled greenhouse environments. It is noted for its dense structure, thick trichome coverage, and a relatively forgiving growth habit that still yields connoisseur-grade resin. The strain is well-suited for growers seeking potent, terpene-forward results with consistent bag appeal. Flowering time information is not explicitly detailed but implied to be typical for indica-dominant hybrids.

Origins and Lineage

Developed by The Fire Department, a Colorado-based breeder collective, 303 Alien is a mostly indica hybrid. The name references the Denver area code, signaling its local roots, while the 'Alien' component suggests a connection to fuel-forward strains. While precise parentage is not officially published, community consensus points to a cross involving a Colorado '303' OG-type line and an Alien-family donor, possibly related to Alien Technology or Alien Kush.

Frequently asked questions

What is the THC content of 303 Alien?
THC levels for 303 Alien typically range from 19% to 26%.
What are the dominant aromas of 303 Alien?
The dominant aromas are evergreen and fuel, with notes of pine, citrus, diesel, and earthy undertones.
What type of strain is 303 Alien?
303 Alien is considered a mostly indica-leaning hybrid.
What effects are commonly reported from 303 Alien?
Commonly reported effects include heavy relaxation and a focused, body-centered experience, often making it suitable for evening use.