Equisetum fluviatile

Water Horsetail

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Perennial aquatic horsetail with hollow, jointed stems rich in silica. Thrives in shallow water or boggy soil, spreading aggressively via rhizomes.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
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Plant Details

Common Name Water Horsetail
Family Equisetaceae
Genus Equisetum
Species Fluviatile
Origin Circumboreal regions
Blooming Foliage plant; fertile stems produce spores in summer
Leaf Color Bright green to blue-green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

terrain
Soil

Heavy clay or silt substrate submerged in water; high organic matter required for boggy conditions

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Watering

Requires constant saturation, either fully submerged or in very wet soil; never allow to dry out completely

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Sunlight & Care

Prefers full sun but tolerates partial shade; stems may become leggy without adequate light intensity

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Fertilization

Low nutrient needs; liquid fertilizer monthly during spring and summer if water is nutrient-poor

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Pruning

Cut back dead stems in late winter before new growth emerges to encourage vigorous rhizome development

Pest Control Aphid Scale Insect 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 3 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
41° – 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 – 25000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
10 – 40
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
80% – 95%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1200
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

Something wrong with your Equisetum fluviatile? Select a symptom to diagnose and fix the issue.

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