The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 6514Sativa

Silver Jack

Super Silver Haze × Jack Herer

Silver Jack is a sativa-dominant cultivar recognized for its rapid onset of clear-headed euphoria and uplifting effects. Its name reflects the sparkling resin coverage, and it is often described as a cross combining Super Silver Haze and Jack Herer genetics.

AromaCitrusPineHerbalFloral

Appearance

Silver Jack plants tend to grow tall and lanky, with long internodes that allow for significant stretching during early flowering. When cultivated indoors, particularly in scrog nets, they can develop long, continuous colas. The strain typically exhibits a favorable calyx-to-leaf ratio, which contributes to efficient trimming and a visually appealing appearance.

Aroma & Flavor

The aroma of Silver Jack is characterized by bright notes of lemon and pine, often accompanied by sweet herbal undertones and a subtle floral hint. Upon consumption, the flavor profile mirrors this complexity, moving from initial citrus and pine sensations to a more herbal and peppery finish.

Effects

Consumers often report that Silver Jack provides a fast-acting, clear-headed lift and a sense of lucid euphoria. It is generally associated with energetic, creative, and uplifted feelings, making it a popular choice for daytime use and task-oriented activities. The strain is noted for minimal body drag and relatively low sedation, offering a smooth experience when consumed in moderation.

Terpenes & Cannabinoids

Terpinolene is frequently identified as the dominant terpene in Silver Jack, supported by compounds such as beta-caryophyllene, limonene, alpha-pinene, and ocimene. This terpene profile contributes to the strain's characteristic aroma and flavor. THC levels are typically found in the high teens to mid-20s, with CBD content usually below 1%.

Origins

Silver Jack is largely understood to be a cross that unites the genetics of Super Silver Haze with the Jack Herer family. Both parent lineages are known for their terpene-forward profiles and energizing effects. The combination aims to capture the bright, creative energy of Haze varieties with the motivational clarity associated with Jack Herer.

Frequently asked questions

What is the typical THC content of Silver Jack?
THC content in Silver Jack often ranges from the high teens to the mid-20s, with specific batches frequently testing above 18%.
What are the dominant terpenes in Silver Jack?
Terpinolene is commonly the dominant terpene, supported by beta-caryophyllene, limonene, alpha-pinene, and ocimene.
What effects can I expect from Silver Jack?
Silver Jack is known for producing energetic, creative, and euphoric effects, often described as a clear-headed lift.
What is the reported lineage of Silver Jack?
Silver Jack is typically a cross between Super Silver Haze and a Jack Herer line, combining genetics from both well-known sativa-dominant cultivars.