Thailand’s Isan region is preparing to welcome visitors to the Udon Thani International Horticultural Expo, running from 1 November 2026 to 14 March 2027. The event will take place at Nong Dae wetland, just 15 minutes from Udon Thani International Airport. It is the first international horticultural expo of its kind in Northeast Thailand.
Beyond the exhibition, visitors can use Udon Thani as a gateway to explore Isan’s natural and cultural attractions. These include the Red Lotus Sea, Ban Chiang, Phu Phra Bat, Nong Khai and Loei.
The expo coincides with the cooler season, making it an ideal time to explore the surrounding countryside. Visitors can follow several suggested routes, including the Lotus Loop, which leads to Nong Han Kumphawapi, better known as the Red Lotus Sea. While the blooming season begins in November, the best time to see the flowers is usually from mid-January to mid-February.
Another option is the Stones and Sculptures route. This journey heads northwest to Phu Phra Bat, a UNESCO World Heritage site known for its unusual sandstone formations. Visitors can then continue to Nong Khai and explore Sala Kaeo Ku sculpture park, where enormous concrete sculptures draw inspiration from Buddhist and Hindu traditions.
Meanwhile, travellers heading west to Loei can follow the Into the Hills route. This longer journey is best enjoyed with an overnight stay. Highlights include Phu Kradueng National Park, which reopens in November, and Phu Luang Wildlife Sanctuary, known for its orchids and rhododendrons.
Plant enthusiasts will also find plenty to admire. Attractions range from the pink carpet of water lilies at Nong Han to dendrobium orchids and tiny carnivorous bladderworts. However, timing matters. November visitors should focus on orchids and bladderworts, while Siam tulips are best seen during the rainy season.
With cool mornings and warm afternoons, visitors should pack light layers. Hiring a car also makes it easier to explore attractions beyond the city. Together, the expo and surrounding destinations offer an opportunity to discover Isan’s rich horticultural, natural and cultural heritage.
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