Water hyacinth can be eaten, the young leaves and flowers of water hyacinth are edible, but not really recommended as a regular food.

Water hyacinth can be eaten, water hyacinth leaves and flowers can be eaten, these two positions will be eaten more fragrant and refreshing, in some places such as Malaysia, the residents of the water hyacinth will be used as a vegetable, its origin is Brazil, is now widely distributed in China's Yangtze River and Yellow River Basin, it is generally grown in the elevation of two hundred to fifteen hundred meters or so in the rice paddies, ponds and ditches.

Water hyacinth, generally referred to as crested blue, prefers to be born in shallow water, and is also able to grow in bodies of water that do not flow much, drifting with the water. Reproduction is rapid. After flowering, the flower stem bends into the water to grow, and the ovary develops and expands in the water. Fengyan blue axillary buds more, can develop Chi for the new plant, stolons longer, tender and brittle easy to break, break away from also become independent of the new plant, has a very strong asexual reproduction ability.

Phoenix blue soft, juicy, tender and delicious, can be used as chicken, ducks, geese, fish, pigs, excellent feed.