Master Jack
Master Kush × Jack Herer
Master Jack is a hybrid cannabis strain that merges the uplifting mental clarity associated with Jack Herer with the calming physical sensations derived from Kush genetics, often Master Kush. It is generally considered a balanced daytime option, suitable for productive yet relaxed experiences.
Appearance
Master Jack typically develops medium to large colas characterized by densely stacked calyxes and a heavy coating of trichomes. The buds are usually a bright green hue, interspersed with orange to deep copper pistils. While some phenotypes may exhibit slightly looser bud structures reminiscent of its Haze lineage, others present tighter, more compact buds influenced by its Kush heritage.
Aroma & Flavor
The aroma of Master Jack combines bright citrus and pine notes from its Jack Herer parentage with deeper, woodsy, and slightly peppery undertones from its Kush influence. Upon combustion or vaporization, initial flavors often present as lemon-lime with a piney edge, evolving into a warmer, spicier profile with notes of clove or nutmeg. The finish is generally smooth, with lingering hints of sandalwood and citrus peel.
Effects
Users commonly report that Master Jack provides a sense of invigorating clarity and upliftment, often accompanied by a noticeable sense of physical calm and relaxation. This combination makes it a popular choice for daytime use, potentially fostering creativity and productivity without inducing significant mental fogginess or excessive sedation.
Terpenes & Cannabinoids
Master Jack typically exhibits a THC content ranging from 18% to 26%, with most samples falling between 20% and 24%. CBD levels are generally below 1%. The terpene profile is often led by terpinolene, limonene, and pinene, contributing to its bright aroma, with beta-caryophyllene and humulene adding spicy and woody nuances. Minor cannabinoids like CBG and THCV may also be present in trace amounts.
Growing
Master Jack is often described as a hybrid with sativa-leaning effects and indica-derived physical comfort, benefiting from Kush genetics to moderate height and improve bud density. The Kush influence also contributes to thicker calyxes and enhanced structural integrity, potentially increasing resilience in humid conditions and reducing the risk of mold. It is considered adaptable to various growing environments, including indoor, greenhouse, and outdoor settings.
Origins & Lineage
Master Jack is understood to be a hybrid cross, most commonly cited as Master Kush and Jack Herer. This combination aims to integrate the clear, uplifting qualities of Jack Herer with the grounding, body-calming attributes of Master Kush. The strain began appearing on North American markets in the 2010s, developed by breeders seeking to balance creative stimulation with physical comfort for daytime use.