When exposed to water, pearl-like flowers begin to turn transparent like glass.
March is the season of blooming flowers throughout the mountains and forests of the Northwest, also when ethnic people start their new crop on upland fields.
Every spring, the flowers will bloom on both sides of Bac Son road (Hanoi). The pristine beauty of this Northwest forest flower has attracted many people every time they come
The flower festival is usually held from mid-April to mid-May, which is also the time when flowers bloom. Visitors who visit during this time will be immersed in the festival