The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 5409Hybrid

Super Jack

Jack Herer × Super Silver Haze

Super Jack is a sativa-leaning hybrid celebrated for its energizing cerebral lift and clear-headed focus. This terpene-forward cultivar is favored by creative individuals and those seeking motivation without heavy sedation. Its reputation is built on a profile that offers potent effects with a bright, clean feel when consumed thoughtfully.

May help withStress
AromaCitrusPineHerbalFloralIncenseTea-leafEucalyptus

Appearance

Super Jack buds are typically long and conical, characteristic of Haze-dominant hybrids, featuring a high calyx-to-leaf ratio that simplifies trimming. The flowers display shades of lime to deep green, often coated in a silvery resin that gives them a frosted appearance. Pale tangerine pistils mature to a deeper amber, contrasting with the buds.

Some phenotypes may exhibit minor foxtailing late in bloom, a common trait in Haze genetics under intense light, which is generally considered benign when environmental conditions are stable. The plants have moderate to wide internodal spacing, necessitating canopy management for optimal light distribution.

Aroma & Flavor

The aroma of Super Jack is dominated by fresh citrus peel, pine needles, and a resinous herbal spice reminiscent of rosemary and green tea. A sweet, floral note, sometimes likened to jasmine or melon, is also present, indicative of terpinolene-rich chemotypes. Background notes of peppery spice and incense hint at its parentage.

Upon inhalation, flavors of lemon-lime and sweet orange are followed by green, resinous pine and peppery-herbal spice, with subtle tea-leaf and lemongrass accents. Well-cultivated batches may finish with a light sweetness, evoking mango skin or pear candy. The flavor profile is generally cleaner and more pine-citrus than skunky or earthy.

Effects

Super Jack delivers a quick cerebral lift and clear-headed focus, often described as providing 'laser focus' and 'clean energy.' It is known for its uplifting and euphoric qualities, making it a popular choice for creative endeavors and daytime use.

While potent, the effects are frequently characterized as bright rather than overly stimulating, especially when dosed appropriately. It is favored by those seeking motivation and a clear mind without significant sedation.

Terpenes & Cannabinoids

Lab analysis of Super Jack typically shows THC content ranging from 17% to 24%, with CBD levels below 1%. The terpene profile often skews toward terpinolene, ocimene, pinene, and limonene, contributing to its distinct aroma and uplifting effects.

These aromatic compounds are believed to synergize with THC and other cannabinoids, shaping the strain's signature uplifting experience. Consumers seeking clarity and energy often find this cannabinoid and terpene combination beneficial.

Origins & Lineage

Super Jack is a sativa-leaning hybrid resulting from the cross of Jack Herer and Super Silver Haze. This lineage combines the cerebral edge of both parent strains, emerging from the wave of Haze-forward hybrids developed in the late 1990s and early 2000s.

The name 'Super Jack' reflects its genetic connection to the Jack Herer line, enhanced by the qualities of Super Silver Haze. This breeding effort synthesized the active effects and aromatic complexity of its parents, creating a cultivar known for its consistency and Haze-like brightness.

Growing

Super Jack plants are vigorous, typically growing into long, conical structures with moderate to wide internodal spacing. Indoor cultivation can result in heights of 120–200 cm with significant stretch post-flip, while outdoor plants can reach 250–350 cm in suitable climates. Sturdy trellising is recommended to support the branches as flowers develop.

The flowering time is generally consistent with Haze-dominant strains, and the high calyx-to-leaf ratio aids in efficient trimming. Cultivators often select phenotypes that emphasize terpinolene and exhibit clear finishes. It thrives in environments that can accommodate its stretch and support resin production.

Frequently asked questions

What is the THC content of Super Jack?
Lab-tested batches of Super Jack typically show THC levels ranging from 17% to 24%.
What are the dominant terpenes in Super Jack?
Commonly reported dominant terpenes include terpinolene, ocimene, pinene, and limonene, contributing to its bright, citrusy, and piney aroma.
What is the lineage of Super Jack?
Super Jack is a hybrid strain resulting from a cross between Jack Herer and Super Silver Haze.
What effects can I expect from Super Jack?
Users often report energetic, creative, and euphoric effects with a clear-headed focus, making it suitable for daytime use.