The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 5918Indica

Ko Chang by Zomia

Thai Landrace

Ko Chang by Zomia is an indica-dominant strain named after the Thai archipelago. It is characterized by a THC content typically ranging from 17-19% and low levels of CBD. This strain offers a complex aromatic profile and is recognized for its unique sensory experience.

EffectsEnergetic Uplifting Stimulating
May help withFatigue Stress
AromaCitrusFloralHerbalMangoLemongrassPineTea

Appearance

Ko Chang presents with classic narrow-leaf sativa morphology, typically growing tall with long internodal spacing and thin leaflets. Its branches are flexible, lending themselves to training. The inflorescences are elongated and airy, resembling spears, which aids in airflow and mold resistance, especially in humid conditions. At maturity, pistils are often bright orange to copper, contrasting with lime-green calyxes covered in trichomes. The buds may appear lighter and wispier than those of indica hybrids, with potential for foxtailing under intense light. Trichome coverage is notable on calyxes and sugar leaves.

Aroma & Flavor

The aroma of Ko Chang is predominantly citrus-forward, with notes of sweet lime, pomelo, and citrus peel zest. Secondary aromatic layers include lemongrass and green mango, complemented by a subtle floral lift. A peppery, herbal undertone, reminiscent of Thai basil or white pepper, rounds out the bouquet. On the palate, the flavor is zesty and clean, featuring lime, lemongrass, and sweet orange upon ignition, followed by delicate pine and tea notes on the exhale. A mild peppery and herbaceous basil finish often lingers.

Effects

While described as sativa-heritage, consumer-facing descriptions and its island landrace origins suggest an uplifting and active experience, contrasting with heavy indica-style sedation. The effects are often associated with a clear-headed stimulation and a physical spark, aligning with daytime use. This profile suggests a clear sativa experience, potentially aiding in combating fatigue.

Terpenes & Cannabinoids

Ko Chang is a THC-dominant strain, with THC levels reported between 17-19% and CBD content below 1%. The aromatic profile suggests the presence of terpenes such as terpinolene and limonene, contributing to its bright citrus and floral notes. Other terpenes like ocimene, caryophyllene, and pinene may also contribute to its complex bouquet and effects. The cannabinoid profile is primarily THC-driven, with minimal CBD.

Origins & Lineage

Ko Chang by Zomia is a sativa-heritage strain named after the Ko Chang archipelago in Thailand. It is derived from Thai island landrace populations, which are adapted to hot, humid, and maritime climates. These landraces historically favored tall, narrow-leaf plants that finish late and resist tropical pathogens. Zomia has curated and stabilized this island phenotype, preserving its regional character and genetic traits from the Ko Chang archipelago's sativa genome.

Growing

As a sativa landrace selection, Ko Chang typically exhibits tall, vine-like growth with long internodal spacing. It requires careful canopy management indoors due to aggressive stretching in early flower. The plant's open, spear-like inflorescence structure is adapted for airflow and mold resistance in humid environments. It often has a longer flowering time, characteristic of tropical sativa landraces, and may require specific environmental controls to thrive. Yields are generally moderate.

Frequently asked questions

What is the THC content of Ko Chang by Zomia?
Ko Chang by Zomia typically has a THC content ranging from 17-19%.
What are the dominant aromas and flavors of Ko Chang?
Ko Chang is known for its dominant citrus aromas and flavors, often accompanied by herbal, floral, and tropical notes like mango and lemongrass.
What type of effects can be expected from Ko Chang?
Consumers often report uplifting, clear-headed, and stimulating effects, making it suitable for daytime use.
What is the origin of the Ko Chang strain?
Ko Chang originates from the Ko Chang archipelago in Thailand and is a sativa-heritage landrace selection.