The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 5471Indica

Green Haze

Columbian × Thai × South Indian × South American landraces

Green Haze is a sativa-dominant hybrid with roots in the classic Haze strains developed in California during the 1970s. It is a selection that favors the green phenotype, characterized by citrus and pine notes, and is valued for its complex aroma and clear-headed effects.

EffectsCerebral Energetic Uplifting Clear-headed
May help withStress
AromaCitrusPineIncenseFloralCedarLemongrass

Appearance

Green Haze plants exhibit a tall, graceful sativa structure with medium-long internodal spacing. The leaves are typically narrow-bladed with a lighter green hue. Mature plants develop elongated, foxtailed colas with a high calyx-to-leaf ratio, appearing aerated rather than dense. Buds are often feathery yet resinous, with coloration trending towards bright green and occasional minty highlights, contrasted by orange pistils.

Aroma & Flavor

The aroma profile of Green Haze is complex, centered around a terpinolene-dominant core that evokes citrus peel, fresh pine, and green mango. Initial notes often include lime zest and lemongrass, with undertones of cedar, incense, and faint floral characteristics emerging as the plant cures. The bouquet is described as having a nose-tickling effervescence, reminiscent of sparkling citrus.

Effects

Green Haze is noted for delivering a cerebral and energetic experience, often described as clear-headed and uplifting. It resonates with those seeking the original sativa ethos, providing a soaring sensation without significant jitteriness. The effects are considered potent but not overpowering, offering a clean come-down and a lasting uplift.

Terpenes & Cannabinoids

Terpene profiles in Green Haze selections often feature terpinolene, beta-caryophyllene, and alpha-pinene. Modern lab testing typically places THC levels between the mid-teens and occasionally exceeding 20 percent. CBD content is generally less than 1%, with some phenotypes showing trace amounts of THCV and minor cannabinoids like CBG.

Growing

Green Haze is a long-flowering sativa, with flowering times typically extending from 12 to 16 weeks. It prefers warm, Mediterranean-like climates and benefits from trellising due to its vigorous vertical growth. The plant's airy bud structure and high calyx-to-leaf ratio contribute to greater mold resistance compared to denser indica hybrids. It tolerates various training methods, including bending and low-stress training.

Origins & Lineage

Green Haze originates from the classic Haze work in California during the 1970s, developed by combining Columbian, Thai, and South Indian or South American landraces. It represents a selection favoring the greener pheno, stabilizing the citrus-forward and energetic aspects of the Haze spectrum. Preservation efforts in the 1990s and 2000s aimed to isolate and stabilize these expressions.

Frequently asked questions

What is the typical THC content of Green Haze?
Modern lab testing usually places Green Haze's THC content in the mid to high teens, occasionally surpassing 20 percent under optimal conditions.
What are the dominant terpenes in Green Haze?
Selections of Green Haze often exhibit terpene profiles dominated by terpinolene, beta-caryophyllene, and alpha-pinene.
How long does Green Haze take to flower?
Green Haze is a long-flowering sativa, with flowering times typically ranging from 12 to 16 weeks.
What kind of effects does Green Haze provide?
Green Haze is known for delivering cerebral and energetic effects, often described as clear-headed and uplifting, resonating with the classic sativa experience.