Plant Care Common Water-Hyacinth

Common Water-Hyacinth

About Common Water-Hyacinth

Common Water-Hyacinth is a relatively rare houseplant 🌿 that is a fun challenge to grow and needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Common Water-Hyacinth likes soil that is good at retaining moisture. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.

Common Water-Hyacinth belongs to the Pontederia genus, and is native to South Tropical America.


Pontederia crassipes

Also known as

Eichhornia crassipes, Water Hyacinth, common water hyacinth, Pontederia, Oshunae, Eichhornia crassipes and Water Hyacynth

How to care for Common Water-Hyacinth

💦 Water

How often to water your Common Water-Hyacinth

Water needs for Common Water-Hyacinth
0.5 cups
every 9

Common Water-Hyacinth needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Common Water-Hyacinth

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size

☀️ Light

Finding light for Common Water-Hyacinth in your home

Light needs and placement for plant Common Water-Hyacinth: 1ft from a window
1ft or less from
a window

Common Water-Hyacinth love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Common Water-Hyacinth does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Common Water-Hyacinth in your home 🏡.

🪴 Nutrients

How to fertilize Common Water-Hyacinth

Nutrient, fertilizer, and repotting needs for Common Water-Hyacinth: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Common Water-Hyacinth after it doubles in size or once a year—whichever comes first.

💡 FAQs
⭐ Difficulty Level

Common Water-Hyacinth can be challenging to care for, according to some plant parents. Check out the reviews down below to learn from their experiences!

Benefits of Growing Common Water-Hyacinth →

Common Common Water-Hyacinth Problems →

💦 Water Needs

Common Water-Hyacinth prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Common Water-Hyacinth Water Frequency →

Common Water-Hyacinth Root Rot →

☀️ Sunlight Needs

Common Water-Hyacinth requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Common Water-Hyacinth Light Requirements →

Common Water-Hyacinth Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Common Water-Hyacinth is not known to cause harm to humans or pets. Regardless, if you, a family member, a cat, or dog has ingested any plant material, please consult a doctor or a veterinarian.

🪴 Soil

Common Water-Hyacinth is very sensitive to dry soil, so choose a potting soil that retains moisture. A good soil will still drain well and contain lots of organic matter such as coco coir or sphagnum moss.

Best Soil Mix for Common Water-Hyacinth →

When and How to Successfully Repot Common Water-Hyacinth →

💩 Fertilizer

Common Water-Hyacinth should be repotted after it doubles in size or once a year, whichever comes first. Fresh potting soil has all the nutrients your plant needs, so as long as it’s refreshed yearly, you shouldn’t need to use fertilizer. Remember, plants get their energy from sunlight, not fertilizer!

🌦️ Growing Outdoors

USDA Hardiness Zone
Common Water-Hyacinth can be grown outdoors in USDA Hardiness Zones 9a-11b. Find your local hardiness zone here.

Common Water-Hyacinth Temperature Tolerance →

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.

Care Summary for Common Water-Hyacinth

Common Water-Hyacinth

Common Water-Hyacinth

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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