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Eichhornia crassipes

Water hyacinth

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Key information

Plant type


Flower colour



Flowers, Dramatic foliage



Skill level


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Plant details

In the waterways of hotter countries, water hyacinths are a menace, throwing out long spreading runners and soon covering the whole surface. In cooler gardens, though, they are an attractive seasonal pond feature, kept within bound by autumn frosts. The floating leaf stems are inflated like small balloons, which helps to hold the thick rounded leaves just above the water - below the surface are other, different shaped leaves and clusters of dangling roots. The flowers resemble orchids, pale lavender blue with darker yellow-eyed markings.

Family: Pontederiaceae

Genus: Eichhornia

Species: crassipes

Plant type: Aquatic

Flower colour: Violet

Foliage colour: Dark green

Feature: Flowers, Dramatic foliage

Sun exposure: Full sun

Hardiness: Tender

Skill level: Experienced

Height: 30cm

Spread: 90cm

Time to divide plants: June to July

Reader reviews


I have bought a small Water hyacinth and i`ve put it in a big plastic pot with a lotus (nymphea alba).I`ve added sand and soil from the river bank and fountain water.The lotus is doing ok, it has small leaves, but the hyacinth`s leaves are starting to wilt.What should i do?The person that sold to me the hyacinth told that it is enough to put it into the water, it is not necessary to burry the roots into the soil.
Thank you


my water hyacinth grows but does not flower why

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