Common Name: Water Hyacinth Plant Description Name: Eichhornia crassipes "Water Hyacinth" Succulent leaves with bright purple blossoms that tower above the green foliage. The Water Hyacinth flower is a great water filter plant. Removing impurities and excess nutrients that algae requires to survive. Water Hyacinth provides an attractive cover that fish need as protection from predators. A beautiful plant for any water garden.