Water Hyacinth Plant Care

Water Hyacinth (Eichhornia crassipes) belongs to the Pontederiaceae family within the Eichhornia genus. Water Hyacinth is native to South America, naturalized throughout the world, and often invasive outside its native range. Water Hyacinth is also known as Common Water Hyacinth, Floating Violet, Water Orchid.

Water Hyacinth displays a floating aquatic plant growth habit, reaching up to 3 inches tall with a spread of approximately 6 inches. Water Hyacinth produces showy purple, blue, or lavender flowers on long stalks.

Leaf size: approximately 0 inches.

Eichhornia crassipes requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Water Hyacinth thrives in full sun to partial shade light conditions. The optimal light range is 0–0 lux. Avoid placing Water Hyacinth in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Eichhornia crassipes grows best at temperatures between 60°F and 80°F. Water Hyacinth prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Rich, loamy soil with good organic content and good drainage. Good drainage is essential for Water Hyacinth to prevent waterlogging, which leads to root rot and fungal issues.

Does not require potting, grows in water. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

Water Hyacinth can be propagated through division of rhizomes, seeds.

Water Hyacinth is susceptible to aphids, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Water Hyacinth grows outdoors in USDA Zone 9a – 13b. Native to South America, naturalized throughout the world, and often invasive outside its native range, Water Hyacinth is adapted to warm climates. In cooler regions, grow Water Hyacinth as a houseplant or bring it indoors before the first frost.