Fast Jack by Oregon Green Seed
Jack Herer
Fast Jack is a sativa-dominant cultivar developed by Oregon Green Seed, designed to offer the classic Jack Herer experience with an accelerated flowering period. This strain is bred for resilience and early finishing, making it suitable for growers in regions with shorter outdoor seasons. Its lineage suggests a refinement of a beloved sativa for improved practicality without sacrificing desirable traits.
Appearance
Fast Jack exhibits a predominantly sativa growth structure, characterized by tall, upright plants with moderate spacing between nodes and a strong central stem during early flowering. Indoor cultivation typically results in plants reaching 90-140 cm without training, or around 70-100 cm with canopy management. Outdoors, plants can grow over 180 cm. The buds develop into long, tapered spears with a medium-high calyx-to-leaf ratio, which aids in trimming. These buds form in segmented clusters and may show slight foxtailing under high light intensity. Pistils change from cream to deep orange, and trichomes mature to a milky appearance by week 7-8, with some amber developing in the final days.
The leaves are typically narrow-lobed and range from bright lime to forest green, darkening with increased nitrogen or cooler temperatures. Stems lignify well and tolerate low-stress training. The dried flowers are moderately dense for a sativa, maintaining a springy texture that preserves aroma. Fast Jack can produce uniform secondary colas, making it suitable for training techniques like Screen of Green (ScrOG) to maximize yield.
Aroma and Flavor
The aroma of Fast Jack is reminiscent of its Jack Herer ancestry, featuring prominent notes of pine resin, fresh herbs, and a bright citrus overlay. Alpha-pinene often contributes a sharp, coniferous top note, complemented by undertones of sweet wood, mild spice, and a cool, menthol-like freshness as the flowers cure. On the vine, the bouquet is sharper and greener, with myrcene and terpinolene adding fruity and floral-herbal nuances. Post-cure, the profile balances pine, citrus, and herbal notes, occasionally with hints of anise or eucalyptus.
When consumed, Fast Jack delivers a crisp pine flavor upfront, followed by lemon peel, a gentle sweetness, and a subtle peppery finish. The initial taste is clean and bright, with a pine-herbal character that lingers. As the experience progresses, woody tones and mild spice emerge. Vaporizing at moderate temperatures highlights citrus-herbal notes, while higher temperatures bring out earthier, peppery undertones. The exhale is distinctly piney, often with a cooling sensation.
Effects
Fast Jack is reported to provide cerebral and uplifting effects, consistent with its sativa heritage. It is often described as promoting creativity and offering a high-energy experience suitable for daytime consumers. The effects are generally balanced, providing mental stimulation without being overwhelming.
Terpenes and Cannabinoids
The cannabinoid profile of Fast Jack typically includes THC levels ranging from 16% to 24%, with CBD content below 1%. Dominant terpenes often found in Jack Herer-derived strains, which likely influence Fast Jack, include pinene and myrcene, with terpinolene frequently appearing in sativa-leaning phenotypes. Other terpenes that may be present include limonene, caryophyllene, and humulene.
Growing
Fast Jack is bred for resilience and an early finish, making it well-suited for outdoor cultivation in temperate climates with shorter growing seasons. Its mostly sativa structure requires moderate space, but it responds well to training techniques to manage height and maximize yield. The flowering time is accelerated compared to traditional sativas, often completing in approximately 8-9 weeks indoors, which helps mitigate risks associated with fall rains and mold.
Origins and Lineage
Developed by Oregon Green Seed (OGS), a breeder known for creating hardy, early-finishing cannabis varieties, Fast Jack is strongly suggested to be a program built around the Jack Herer family. The breeding rationale likely involved crossing a selected Jack Herer line with a fast-finishing partner, such as an early skunk or indica-leaning strain, to shorten the bloom period while preserving the characteristic Jack Herer aroma and uplifting effects. This adaptation aims for speed, stability, and weather tolerance.