The XXIII HSI International Conference 2026

Nongnooch Tropical Botanical Garden Pattaya to Host the XXIII HSI International Conference 2026 .
The Nongnooch Tropical Botanical Garden Pattaya is proud and honored to host the XXIII HSI International Conference organized by the Heliconia Society International (HSI) from August 8–12, 2026. This prestigious international gathering will bring together plant enthusiasts, botanists, collectors, and researchers from around the world to celebrate the beauty and science of tropical plants.
� Conference Dates: August 8–12, 2026
� Location: Bangkok & Nongnooch Garden Pattaya
This 4-day, 4-night all-inclusive conference will begin with a special gala dinner in Bangkok, followed by a transfer to Nongnooch Garden where participants will experience exclusive access to some of our garden’s most remarkable plant collections and nurseries.
� Conference Highlights:
• 3 Half-Days of presentations by international speakers
• Exclusive morning visits to Nongnooch Garden’s nurseries (not open to the public)
• Guided Tour of Nongnooch Garden with lunch
• Air-conditioned conference sessions in the afternoons
• Gala dinner and evening social gatherings
• Four nights accommodation at Nongnooch Resort
• Conference breakfasts, lunches, snacks, and coffee breaks
• Transfer to and from Bangkok
� Conference Registration (Aug 8–12, 2026)
• Single Rate: 1,650 USD
• Double Rate: 1,430 USD
� Registration Form: https://docs.google.com/document/d/1hIsXI5nal14yk1h2Y-3xKsoxnQsf2Uv_/edit
� Online Payment: https://www.nongnoochresortpattaya.com/resort/nongnooch_book/?def=Package&ci=2026-08-12&co=2026-08-15
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� Optional Post-Conference Tour – Chiang Mai
� August 12–15, 2026 (4 Days / 3 Nights)
Continue the botanical journey with an exclusive tour to Chiang Mai, including visits to renowned plant institutions and nurseries.
� Tour Includes:
• 3 nights at Mövenpick Suriwongse Hotel, Chiang Mai
• Visits to local Ginger Nurseries, Maejo University, and Queen Sirikit Botanical Garden
• Transportation for all tours and airport transfers
• Snacks and beverages
• One-way flight from Bangkok to Chiang Mai
� Post Tour Rates:
• Single Rate: 1,245 USD
• Double Rate: 1,045 USD
� Registration Form: https://docs.google.com/document/d/1hIsXI5nal14yk1h2Y-3xKsoxnQsf2Uv_/edit
� Online Payment: https://www.nongnoochresortpattaya.com/resort/nongnooch_book/?def=Package&ci=2026-08-12&co=2026-08-15
� Learn more about the Heliconia Society International
www.heliconia.org
https://www.nongnoochpattaya.com/en/XXIII%20HSI%20International%20Conference
� Registration Confirmation:
Please send your completed form to Anders Lindstrom via email.
HSI Conference Organizers
Carla Black
Anders Lindstrom
� [email protected]
� [email protected]
� +507 6747-3039
� +66 819076905
Join us in Nongnooch Garden Pattaya for an unforgettable gathering of tropical plant lovers from around the world. Discover rare collections, learn from international experts, and reconnect with friends old and new in one of the world’s most beautiful botanical gardens.