Eichhornia crassipes

Water Hyacinth

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Floating aquatic perennial with violet-blue flowers and bulbous leaf stalks. Rapid growth rate; invasive in non-native waters.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Water Hyacinth
Family Pontederiaceae
Genus Eichhornia
Species Crassipes
Origin South America
Blooming Produces violet-blue flowers on spikes above water surface in summer.
Leaf Color Glossy dark green, purple undersides
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

terrain
Soil

Submerged in water; no soil required. Nutrient-rich water or hydroponic solution.

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Watering

Constantly submerged in warm water. Maintain water level as roots are aquatic.

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Sunlight & Care

Requires full sun for flowering; partial shade acceptable but reduces blooms.

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Fertilization

Add liquid aquatic fertilizer every 2 weeks during growing season (Spring-Sept).

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Pruning

Remove spent flowers and dense foliage to prevent overcrowding and ensure light penetration.

Pest Control Aphid Thrip Water Hyacinth Weevil

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 5 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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Growing Parameters

thermostat
Temperature
59° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
60% – 95%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
1000 – 25000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1500 – 3500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
80% – 100%
% volumetric
Water content in the growing medium
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Soil EC
400 – 2500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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