The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 8905Indica

Tom Hill Haze

Original Haze × Colombian × Mexican × Thai × South Indian

Tom Hill Haze (THH) is a revered, long-flowering sativa celebrated for its cerebral and energetic qualities. Descended from the original Californian Haze, this strain is associated with breeder Tom Hill and is cherished for its authentic Haze experience.

EffectsCerebral Energetic Uplifting Stimulating
AromaIncenseCitrusCedarHerbalFloralLavenderLemonOrangePepperySandalwoodPineGreenery

Appearance and Morphology

Tom Hill Haze plants exhibit a tall, vine-like structure with elongated internodes and narrow, light-to-mid-green leaflets. Upon flowering, they develop long, spear-shaped buds and foxtails, characteristic of equatorial sativas. The plants feature a favorable calyx-to-leaf ratio, with thin sugar leaves, and mature pistils that can turn vibrant orange or saffron, sometimes displaying lavender hues under cooler temperatures.

Resin coverage is typically moderate to heavy, though trichome heads may be smaller compared to modern indica hybrids. The plant's architecture promotes airflow, reducing the risk of mold, but its sprawling nature necessitates support and training to prevent lodging.

Aroma and Flavor Profile

The aroma of Tom Hill Haze is characterized by an incense-forward bouquet, layered with notes of citrus rind, cedar, and herbal spice. Prominent terpenes like terpinolene and ocimene contribute a bright top note, complemented by hints of pine (pinene) and earthy spice (caryophyllene). Many describe a distinct old-world incense or sandalwood aroma, often combined with sweet lemon and fresh greenery when ground.

Flavors closely mirror the aroma, starting with citrus zest and pine, then settling into incense and dry wood notes. The inhale is typically smooth, with a light mouthfeel, followed by an exhale of sandalwood, cedar, and a subtle herbal bitterness. Some phenotypes may present lemongrass, lime, sweet basil, or green tea notes, occasionally finishing with a peppery note.

Effects and Potency

Tom Hill Haze is prized for its cerebral and energetic effects, offering a clear-headed psychoactivity that evokes the classic Haze experience. Users often report an uplifting and stimulating sensation, making it favored by those seeking mental clarity and inspiration. The effects are known to be long-lasting, providing sustained energy without significant sedation.

Lab analyses commonly place Tom Hill Haze's THC content in the mid-to-high range for a true sativa, typically between 16% and 22%, with some exceptional phenotypes reaching up to 24%. CBD levels are consistently low, usually below 0.5%, and often below laboratory detection limits.

Terpenes and Cannabinoids

The terpene profile of Tom Hill Haze is complex, featuring dominant notes of terpinolene and ocimene, which contribute to its bright, citrusy, and energetic aroma. Secondary terpenes include pinene, adding a piney freshness, and caryophyllene, which provides earthy and peppery undertones. Linalool, humulene, and nerolidol may also be present, adding floral and woody nuances.

Beyond THC and low CBD, minor cannabinoids like CBG are typically found in trace to moderate amounts (0.2% to 0.8%). Some Haze-dominant plants may also express THCV in small percentages (0.1% to 0.5%). The overall cannabinoid content often ranges from 18% to 22%, depending on the specific phenotype and cultivation.

Cultivation

Growing Tom Hill Haze requires patience, as it is a long-flowering sativa, with flowering times commonly reported between 14 to 18 weeks. The plants exhibit vigorous vegetative growth and can significantly increase in height after the light cycle is changed. Its tall, vine-like structure and narrow leaflets are characteristic of equatorial sativas.

This strain is best suited for growers with experience who can manage its demanding flowering period and substantial vertical growth. While it can be cultivated indoors or outdoors, its long flowering time and tall stature may present challenges in some environments. Yields can be moderate, with the quality of the buds being a primary focus over sheer quantity.

Origins and Lineage

Tom Hill Haze traces its lineage back to the original Haze strains developed in Santa Cruz, California, during the 1970s. These foundational Haze populations were a blend of tropical and subtropical landraces from regions including Colombia, Mexico, Thailand, and South India. Breeder Tom Hill is credited with working with and preserving these genetics, maintaining their vigorous, open-pollinated character.

This strain is considered a pure sativa, 100% in genotype and expression, distinguishing it from many modern hybrids that incorporate indica traits to shorten flowering times. Its historical significance lies in its adherence to classic Haze characteristics, offering a genetic link to heirloom sativa expressions.

Frequently asked questions

What is the flowering time for Tom Hill Haze?
Tom Hill Haze is a long-flowering sativa, typically requiring 14 to 18 weeks to mature.
What are the main effects of Tom Hill Haze?
This strain is known for its cerebral, energetic, and uplifting effects, often described as clear-headed and stimulating.
What is the origin of Tom Hill Haze?
Tom Hill Haze originates from the classic Californian Haze genetics of the 1970s, preserved and worked by breeder Tom Hill.
What is the typical THC content of Tom Hill Haze?
THC levels in Tom Hill Haze generally range from 15% to 25%, with most phenotypes falling between 16% and 22%.