Water hyacinth: Is a free-floating perennial

Water hyacinth is a free-floating perennial aquatic plant (or hydrophyte) native to tropical and subtropical South America. With broad, thick, glossy, ovate leaves, water hyacinth may rise above the surface of the water as much as 1 m (3 ft) in height. Water hyacinth is a perennial, free-floating aquatic plant native to tropical regions of South America, and now present on all continents except Antarctica. Common Water Hyacinth (eichhornia crassipes) care, facts, benefits, hardiness and growing advice. How to properly care and plant Water Hyacinth in ponds. In Assam, water hyacinth is seen in abundance in almost every river body of the state, right from big lakes to household ponds in villages. For a long time, the aquatic plant was considered only as a waste and was either cleared up or left unused.