The Blooming Bua Tong Flowers: Seventy years ago, this area was devoid of this species of flower. It wasn't until later, when the missionaries in the area planted them, that they became the attraction they are today. The Dok Bua Tong, also called the Mexican Sunflower, is indigenous to Central America the Western Indian Islands. During their bloom in the winter, tourists from all over come to see the beautiful and colors and smell their aroma.