Weed Shop in Silom: Siam Green Cannabis Co

By Siam Green ·
Interior of Siam Green Cannabis Co on Silom Road, Bangkok

Weed Shop in Silom: Siam Green Cannabis Co

Siam Green Silom is on Silom Road in Bangkok’s Bang Rak district, a short walk from the Sala Daeng BTS and Silom MRT interchange. Open it in Google Maps to confirm the exact door.

Same street, two different crowds. By day it’s Bangkok’s financial district, office towers and lunch queues. After dark it’s one of the city’s busiest nightlife strips, Patpong night market included. Silom has also long been one of Bangkok’s LGBTQIA+ neighborhoods, and both the office crowd and the after-dark crowd pass the shop on the same stretch of road.

Bang Rak, the district Silom sits in, was one of Bangkok’s original foreign trading quarters, built up along the Chao Phraya River in the 1800s. The old General Post Office and a cluster of former European consulates and trading houses are still standing a few streets toward the river, a reminder that the neighborhood was cosmopolitan long before its current mix of glass towers and go-go bars.

Quick facts

Where exactly is Siam Green Silom, and how do I get there?

Get directions to Siam Green Silom on Google Maps

Sala Daeng BTS and Silom MRT share the same interchange, so it makes no difference which line brought you here. From either station, it’s a few minutes’ walk down Silom Road toward Patpong. Sharing the map link works better than reading out the address, especially the first time, since it avoids any question of which side of the road to look on.

What if I’m coming by taxi or Grab instead of the train?

Send the driver the Google Maps pin rather than the address; it removes any guesswork about the approach. Traffic on Silom Road slows during the evening rush and again once Patpong opens for the night, so the BTS or MRT is quicker at those hours. If sharing the pin isn’t an option, Silom Complex or the Sala Daeng interchange are landmarks any driver will know.

Is Siam Green Silom convenient for the after-work crowd?

Yes. It sits on the walk out of Sala Daeng station itself, not off to the side of it, so stopping on the way home from the office adds no real detour.

Which other Siam Green branches are closest, if Silom isn’t convenient?

Siam Green Chinatown is the nearest Bangkok branch by distance, a short ride along the river or the MRT line, and it opens earlier, at 8:00 a.m., to match the Yaowarat daytime food and temple crowd. Phrom Phong and Nana both sit on the Sukhumvit side of the city; from Sala Daeng, the BTS Silom Line connects straight through to the Sukhumvit Line at Siam, a single transfer without leaving the rail system. The full list, with maps and hours for every branch, is on the dispensaries page, and the Koh Samui branch on Chaweng Beach Road covers the island for anyone traveling further south.

What’s Siam Green Silom like inside?

Arched brass shelving runs along one wall, the floor is terrazzo, and the Siam Green sign is lit up behind the register. It’s a compact, walk-in retail space rather than a lounge, closer in feel to a well-kept boutique than a typical Bangkok shophouse dispensary.

What’s nearby if I want to make an afternoon of it?

Lumpini Park, one of the largest green spaces in central Bangkok, is a short walk up Silom Road. Neilson Hays Library, a century-old building a few streets over, suits anyone who likes old architecture as much as books. Silom Complex sits right at the Sala Daeng intersection, and Convent Road runs one block over if the main street feels crowded. Patpong’s night market takes over a few minutes away once the sun goes down. Our guide to Silom covers the area station by station.

Is buying cannabis in Silom straightforward for a first-time visitor?

Yes. Thailand’s rules don’t restrict cannabis purchases to residents, and a licensed shop checks ID rather than nationality. The minimum age is 20, not 18, worth knowing if you’re used to the 18-year alcohol rule as the benchmark. The full breakdown, including where public consumption is off limits, is in our 2026 legal guide.

What do people say about Siam Green Silom?

One recent review puts it simply: “lovely store lovely people.” Anyone who has stopped in already can add their own review directly on the listing.

Frequently asked questions

Can I walk into Siam Green Silom without booking ahead?

Yes. It operates on a walk-in basis during all listed hours. No booking or appointment is needed.

Is Siam Green Silom easy to find at night?

Silom Road is well lit and busy well past midnight, and the storefront sign is visible from the street. The Google Maps pin is still the fastest way to confirm the right direction once Patpong’s stalls are out and the street looks different than it does by day.

Is there a quieter time to stop in, away from the evening rush?

Weekday mornings and early afternoons, before the office crowd starts moving through in the evening.

Is there a phone number if I want to call ahead instead?

Yes, (+66) 096 403 4198 reaches the Silom branch directly.


Open the map above, or call (+66) 096 403 4198. Siam Green Silom is open until 3 a.m.

Siam Green on Google Maps

Drop into the nearest branch!

We look forward to seeing you.

See all five branches →