1-2 minutes. Bamboo leaf stems are easy to soak. Put the cut bamboo leaves into boiling water for about 1-2 minutes to help remove the bitter taste from the bamboo leaves and keep their crisp taste. Bamboo leaf green, also known as Commelina communis, butterfly, bamboo leaf green or bamboo leaf green. It belongs to Commelinaceae. Born in a wet field, the leaves are like bamboo leaves, the flowers are like moths in summer, and the petals of rain flowers are like wings, blue and lovely.