Siam Green locations in Bangkok and Koh Samui

Siam Green has five licensed cannabis dispensaries. Four are in Bangkok, at Phrom Phong, Nana, Silom and Chinatown. The fifth is on Chaweng Beach Road in Koh Samui.

Open daily. Chinatown 8am to midnight, all other branches 11am to 3am. Each card below lists the address, opening hours and phone number. Get directions opens that branch in Google Maps. Nearest branch uses your location to find the closest one.

All five branches

Siam Green Phrom Phong dispensary interior Bangkok

Siam Green Co - Phrom Phong

Bangkok / Sukhumvit Road, next to EmQuartier

Address.663 Sukhumvit Road, Bangkok 10110

Hours.Open daily 11am to 3am

Phone.(+66) 096 893 0545

Nearby. EmQuartier, Emporium, Asok

Siam Green Nana dispensary interior Bangkok Sukhumvit

Siam Green Co - Nana

Bangkok / Sukhumvit Road, next to Korea Town

Address.210 Sukhumvit Road, Bangkok 10110

Hours.Open daily 11am to 3am

Phone.(+66) 093 323 6505

Nearby. Nana Plaza, Sukhumvit Soi 11, Terminal 21

Siam Green Co Chinatown dispensary Bangkok

Siam Green Co - Chinatown

Bangkok / Maha Chai Road, near Yaowarat

Address.325 Maha Chai Road, Bangkok 10200

Hours.Open daily 8am to midnight

Phone.(+66) 098 127 3004

Nearby. Yaowarat, MRT Wat Mangkon

Siam Green Silom dispensary Bangkok

Siam Green Co - Silom

Bangkok / Sala Daeng BTS, near Patpong

Address.18 Silom Road, Bangkok 10500

Hours.Open daily 11am to 3am

Phone.(+66) 096 403 4198

Nearby. Patpong, Lumphini Park

Siam Green Co Koh Samui dispensary Chaweng

Siam Green Co - Chaweng

Koh Samui / Chaweng Beach Road, next to Central

Address.200/8 Chaweng Beach Road, Ko Samui, Surat Thani 84320

Hours.Open daily 11am to 3am

Phone.(+66) 092 484 2330

Nearby. Chaweng Beach, Central Festival Samui

See all 12 landmarks near our branches

Siam Green Nana dispensary

Where each branch is

In Bangkok, Nana is on Sukhumvit Road between Soi 10 and Soi 12, next to Korea Town, and Phrom Phong is on Sukhumvit Road next to EmQuartier. Silom is by Sala Daeng BTS, near Patpong. Chinatown is on Maha Chai Road, near Yaowarat. On Koh Samui, the Chaweng branch is on Chaweng Beach Road, next to Central Festival Samui.

About our branches

Our first branch opened in Phrom Phong in January 2023, and four more have opened since. All five run under the same conditions: 20 or over only, photo ID checked, and DTAM-trained staff present during all opening hours.

Cannabis is a controlled herb in Thailand, sold as flower for medical use only under Ministry of Public Health rules. Every purchase needs a valid medical-cannabis prescription (form ภ.ท.33 / PT 33), issued by a licensed practitioner after an in-branch consultation and assessment. We are a licensed dispensary, not a clinic, so our team guides you through that process rather than issuing the prescription ourselves. Bring photo ID or your passport; you must be 20 or over, and public consumption is prohibited. If you are visiting Thailand, note that foreign prescriptions are not valid here and importing or exporting cannabis is prohibited.

Common questions

How many Siam Green branches are there?

Five. Four are in Bangkok (Phrom Phong, Nana, Silom and Chinatown) and one is in Chaweng on Koh Samui.

Where is the Koh Samui branch?

At 200/8 Chaweng Beach Road, Chaweng, Koh Samui 84320, next to Central Festival Samui.

What are the requirements?

You must be 20 or over, show photo ID or a passport, and hold a valid PT 33 prescription from a licensed practitioner.

Can I use a prescription from my home country?

No. Foreign prescriptions are not valid in Thailand, and taking cannabis into or out of the country is prohibited.

Get directions

Tap a branch to open its Google Maps listing.