The government and TCEB will host the Udon Thani International Horticultural Expo 2026 at Nong Daeng wetland (over 1,030 rai) from 1 November 2026 to 14 March 2027, the first such Category B expo in the Isan region. It features plants, precision agriculture, a carbon forest zone, and a "Eat, Shop, Visit community" zone for local food, silk and agricultural products. If you run a guesthouse, restaurant, food or handicraft business in Udon Thani, plan stock, staff and promotions for the 134-day window. The article gives no figures on visitor numbers or vendor booth terms, so check with the organiser before committing.