Nasturtium officinale

Watercress

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Aquatic perennial herb with peppery, edible leaves. Grows in streams or water gardens. Known for health benefits and rapid growth in nutrient-rich water environments year-round.
yard Kitchen garden plants wb_sunny Half-shade / Sun pets Pet Friendly
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Plant Details

Common Name Watercress
Family Brassicaceae
Genus Nasturtium
Species Officinale
Origin Europe, Asia, North Africa
Blooming Small white flowers, spring to early summer
Leaf Color Bright emerald green
Sunlight Half-shade / Sun
Category Kitchen garden plants
Pet Friendly check Yes
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Care & Maintenance

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Soil

Submerged in water or boggy rich soil; hydroponics preferred for indoor cultivation

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Watering

Aquatic conditions required, keep roots submerged constantly or maintain saturated substrate

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Sunlight & Care

Full sun to partial shade; requires high light intensity for optimal peppery flavor and growth

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Fertilization

Light feeding with balanced liquid fertilizer every 2 weeks during active growth season

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Pruning

Harvest leaves regularly to encourage bushy growth; remove flower stalks if foliage is priority

Pest Control Aphid Leaf Miner Slug Snail

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 4 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
agriculture Harvesting Period 7 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
46° – 86°
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)
1500 – 20000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
10 – 35
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
70% – 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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