Synonyms:
Genetics: Unknown Lineage, Possibly Lao-Isan Landrace
Type: Point of Origin, Open Pollinated
Style: Ganja, Seeded Flowers
Farmer: Various
Sourcing: Piano & Eloise (2021, 2022), Eloise (2023), Eloise & Iza (2025)
District: Ko Chang
Province: Trat
Area: Gulf of Thailand
Region: Eastern Thailand
Appellation: Ko Chang
Country: Thailand

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Cultivation Details:

Regional Planting: July-September
Regional Harvest: January-March
Height: 1-3m
Classification: Landrace/Heirloom, IBL

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Description:

Ko Chang is one of the most potent and legendary Thai landraces, historically renowned for its intense psychoactive effects and musky, incense-like aroma. Sourced from Ko Chang, Thailand's third-largest island in the Gulf of Thailand, this landrace embodies the true spirit of ancient Southeast Asian cannabis.

The plants grow vigorously and stretch hard, with long internodal distances and a lanky, sativa structure, reaching heights of 1-3 metres. Despite the open, airy structure, the buds are relatively dense, covered in a heavy layer of trichomes, and exude a complex, musky incense aroma with sweet, fruity undertones. Ko Chang cannabis is known for its psychedelic potency, delivering a clear-headed, euphoric high that is energetic and long-lasting.

The terpene profile is layered and complex, balancing sweet tropical fruit with spicy incense and herbal undertones.

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Context:

Ko Chang is a rugged, mountainous island known for its old-growth rainforests, 67 km of coastline, and rich cultural history. Historically, Ko Chang was a major hub in the international cannabis trade, known as a smuggling point during the golden age of Thai Stick exports.

During this era, cannabis was smuggled from the mainland to motherships waiting in the Gulf of Thailand, with Lonely Beach serving as a gathering point for smugglers and traders. As a popular stop on the Hippie Trail and later the Banana Pancake Trail, Ko Chang became famous for its potent landrace cannabis, cultivated by local farmers to satisfy both indigenous and tourist demand.

The landrace was grown using natural farming methods, adapted to the rugged, mountainous terrain of the island. Cultivation was concentrated on the eastern side of the island, in open-pollinated fields located on the fringes where rubber plantations meet the old-growth rainforest. This traditional farming practice preserved the genetic integrity and potency of the Ko Chang landrace, making it one of the most sought-after strains during the golden age of Thai cannabis.

However, the landscape of Ko Chang cannabis changed drastically after Thai legalization in 2022. By 2025, traditional landrace cultivation had been almost completely replaced by modern hybrids owned and distributed by foreign entities. Industrial hemp grows have taken over much of the island, leading to the extinction of the traditional Ko Chang landrace.

Only a few isolated plants remain on the Salak Phet side of the island, grown for local culinary use. The traditional farming communities have been largely displaced, and the cultural legacy of Ko Chang cannabis is now at risk of disappearing forever.

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Accession and Selection Details:

Ko Chang 'Pi Ni Nong' Selection (2021)
Notes: Collected by Éloïse from Pi Pin’s patch

Type: Domesticate landrace accession

Altitude: 50-100m

Ko Chang 'Pi Noi' Selection (2021, 2022, 2023)
Notes: Collected by Éloïse from Lung Noi, before he passed away in 2023

Type: Domesticate landrace accession

Altitude: 50-100m

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Current Status:

Ko Chang landrace is extinct. By 2025, no traditional landrace cultivation remained on the island. Only a few isolated plants were found on the Salak Phet side, grown for local culinary use. The rest of the island is dominated by modern hybrids and industrial hemp grows, mostly owned by foreign entities.

Extremely limited seed stock is available from past collections. Future reproductions are planned using open pollination and heirlooming techniques to restore the genetic integrity of this ancient lineage.

However, resources are limited, and conservation efforts are a non-starter without funding and support.

Join us on Patreon to support the rehabilitation of the Ko Chang landrace and help protect a piece of Thai cannabis history before it is lost forever.

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Ko Chang

Name: Ko Chang
Brand: Zomia Collective

€10.00

Quantity

Out of Stock

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