Twelve of Bangkok and Koh Samui's busiest landmarks sit within walking distance of a Siam Green branch. Tell us which one you're closest to and we'll point you at the right shop, with directions, hours, and a phone number that reaches a real person.
Everything we do runs inside Thailand's medical-cannabis framework, and we keep it straightforward. Cannabis flower is a controlled herb under Thai Ministry of Public Health rules, and every purchase needs a valid medical-cannabis prescription (form ภ.ท.33 / PT 33). You start with a short consultation and assessment in-branch, and a licensed practitioner decides whether to issue the prescription. Bring photo ID or your passport, the service is for adults 20 and over, and consumption in public is not allowed. Visiting from abroad? Foreign prescriptions are not valid in Thailand, and importing or exporting cannabis is prohibited.
Every Siam Green branch carries the same menu, cannabis flower plus FDA-approved CBD and THC edibles and drinks, health supplements, branded apparel, and accessories, and holds the same standard of care. What changes is the neighborhood. Phrom Phong is quiet and residential. Silom runs on office hours and slides into nightlife after dark. Nana stays international and open late. Chinatown opens early for the food-crawl crowd. Chaweng moves on beach time. The path is the same at all five: a quick consultation and assessment in-branch, a prescription from a licensed practitioner where appropriate, then flower and unhurried guidance from our team. Use the landmark links above to find your nearest branch, or open the locations page to compare all five at once.