
Breeder: Irie Genetics
Afterglow S1 from Irie Genetics is the feminized selfed version of the original Afterglow, created to give growers access to this popular citrus-forward hybrid without the need to identify and remove male plants. The S1 designation means the seeds were produced by reversing a female Afterglow plant and using its pollen to fertilize itself, resulting in feminized offspring that express the genetic character of the original mother. For growers who loved the original Afterglow in regular seed format but wanted the convenience and efficiency of an all-female crop, Afterglow S1 delivers exactly that. The underlying genetics remain the same as the regular Afterglow — a cross of Clementine and Arise, both of which contribute distinct and complementary traits. Clementine, bred by Crockett Family Farms, is one of the most influential citrus cannabis strains ever created, known for its overwhelming tangerine aroma driven by exceptionally high limonene content. Clementine won consecutive first-place Sativa awards at the High Times Cannabis Cup and has become a cornerstone in terpene-focused breeding. Arise, an Irie Genetics creation from Golden Goat crossed with Daybreaker, adds structural vigor, resin production, and potency to the equation. Golden Goat provides sativa energy and a citrus-pine terpene expression, while Daybreaker contributes fuel undertones and robust branching. The S1 process concentrates these combined traits, with the resulting plants expressing the Clementine-forward terpene character and the Arise-enhanced structure that made the original Afterglow a hit. The terpene profile on Afterglow S1 mirrors the regular version closely. The dominant terpenes are limonene, caryophyllene, and myrcene, with supporting roles from humulene, pinene, and linalool. Limonene is the star — it drives the intense Clementine orange and tangerine aroma that defines this strain's identity. Caryophyllene provides the peppery warmth and spice that prevents the profile from being one-dimensionally sweet. Myrcene contributes herbal earthiness that anchors the lighter citrus top notes. The combined aroma is described as sweet clementine orange peel with peach and champagne-like effervescence — bright, clean, and fruit-forward without the musky or diesel undertones that many hybrids carry. The flavor follows suit with sugared citrus, grapefruit zest, and a tropical fruitiness that persists on the palate through a smooth exhale. THC content for Afterglow S1 typically falls in the 18 to 22 percent range, consistent with the regular version. The effects lean sativa-dominant, delivering an energizing and uplifting cerebral high that enhances creativity, brightens mood, and promotes social interaction. The breeder describes the effect as silly — a lighthearted, giggly, positive mental state that keeps you functional and engaged rather than sedated or spacey. This makes Afterglow S1 an ideal daytime strain for users who want mental stimulation without the anxiety or racing thoughts that some high-THC sativas can produce. The moderate THC level combined with the limonene-rich terpene profile creates a balanced, manageable experience that is accessible to a broad range of consumers. Medical applications align with the effect profile. The mood-elevating properties make Afterglow S1 a consideration for patients managing depression, chronic fatigue, and low motivation. The uplifting mental effects can help with social anxiety by promoting relaxed social engagement. The anti-inflammatory potential of caryophyllene adds a subtle therapeutic dimension beyond the primary mental effects. Stress relief is another commonly reported benefit, with the strain's positive, light-hearted character helping to break cycles of worry and tension without creating cognitive impairment. Cultivation of Afterglow S1 follows the same patterns as the regular version. Plants grow tall and sturdy with well-developed lateral branching, producing an open canopy structure that benefits from SCROG or LST training to manage height and maximize light exposure. Flowering time runs 56 to 70 days (approximately 8 to 10 weeks), with vigorous development throughout the bloom phase. The feminized seed format eliminates the need for sexing plants, simplifying the growing process and ensuring every plant in the garden produces harvestable flower. As with the regular version, some phenotypes may display twisted or wrinkled leaf morphology during mid-to-late flower — this is a genetic trait of certain Afterglow expressions and not a nutritional or environmental issue. Yields are medium to high, with dense, resin-coated buds that exhibit strong bag appeal thanks to their trichome coverage and vibrant coloring. The high calyx-to-leaf ratio means trimming is efficient, and the terpene richness makes Afterglow S1 suitable for both flower consumption and extraction. The strain adapts to indoor and outdoor environments, with outdoor plants performing best in warm, temperate climates with full sun exposure. Indoor growers should manage humidity during late flower to protect the dense bud structure from moisture-related issues. Within the Irie Genetics catalog, Afterglow S1 represents the accessible version of a strain that has already proven itself as both a consumer favorite and a valuable breeding tool. The feminized format lowers the barrier to entry while maintaining the citrus terpene intensity, uplifting effects, and growing vigor that made the original regular Afterglow a staple in home gardens and commercial operations alike.
Strain Details
| Type | Feminzed Photoperiod |
|---|---|
| Flowering Time | 9-10 weeks |
| Aroma | Clementine, Peach |
| Taste | Sweet, Clementine, Peach |
| Effects | Silly |














