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Water Hyacinth

Eichhornia crassipes

aquatic

A striking free-floating aquatic plant producing showy spikes of lavender-blue flowers with yellow centers above glossy green foliage. The swollen petioles (leaf stems) provide natural buoyancy, allowing the plant to float freely on water surfaces. Water Hyacinth is fast-growing and highly efficient at nutrient absorption, making it valuable for water filtration.

Water Hyacinth

Common Problems

Select the problem your Water Hyacinth is experiencing to get a treatment guide.

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Yellow Leaveschevron_right
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Brown Spotschevron_right
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Slow Growthchevron_right
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Wiltingchevron_right

Care Guide

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Light
Full sun essential (8+ hours daily) for robust growth and prolific flowering
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Water
Float freely on water surface; requires clean, still or slow-moving water; water temperature 64–86°F optimal
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Soil
No soil needed; absorbs nutrients directly from water column; benefits from nitrogen-rich water
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Fertiliser
Often thrives without supplemental feeding in nutrient-rich water; all-purpose aquatic fertilizer optional for enhanced growth
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Temperature
Tropical to subtropical; frost-tender; dies at temperatures below 50°F; requires warm growing season
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Humidity
Aquatic plant; requires fully aquatic environment; sensitive to water quality and dissolved oxygen

Toxicity

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Non-toxic; however, plant is classified as invasive in many regions and should not be released into natural waterways

Common Diseases

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Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Water Hyacinth Care Guide — Eichhornia crassipes | GreenScout