Go Back Water Hyacinths

Eichhoria crassipes

Plant Type: Water Gardening

Water hyacinth is a free-floating perennial plant that can grow to a height of 3 feet. The dark green leave blades are circular to elliptical in shape attached to a spongy, inflated petiole. Underneath the water is a thick, heavily branched, dark fibrous root system. The water hyacinth has striking light blue to violet flowers located on a terminal spike. Water hyacinth is a very aggressive invader and can form thick mats. If these mats cover the entire surface of the pond they can cause oxygen depletions and fish kills. Water hyacinths should be controlled so they do not cover the entire pond

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Growing & Maintenance Tips:

Flower Color

Light Purple

Foliage Color


Plant Spread


Good Companions

Plant Height


Scape Height

Hardness Zone

Soil Moisture

Characteristics & Attributes


Bloom Time

Late summer

Critter Resistance


Full sun

Growth Rate


Seasonal Interests