Water Hyacinth

Water hyacinth is a floating plant with long underwater leaves and spongy above water leaves. It has flowers that stand vertically between 1 – 3 inches tall above the water. These flowers are whiteish purple and have two lips. Water hyacinth is a very aggressive invader and can form thick floating mats quickly.


  • 1

    Recreational activities such as swimming, fishing, and boating can be impaired, prevented, and even dangerous.

  • 2

    Excessive Aquatic weeds greatly detract from the aesthetic appeal and possible value of the overall property.

  • 3

    Excessive growth can lead to fish stunting, overpopulation, and in extreme cases, fish kills.

  • 4

    Floating weeds can blanket the entire surface and decrease the oxygen to dangerous levels for fish.

  • 5

    Too many weeds impede water flow in drainage ditches, irrigation canals, and culverts, causing water to back up.


Water hyacinth can be found in most of the contiguous states.

Similar or Related Plants

It is frequently misidentified as Salvinia .