Saponaria officinalis

Common Soapwort

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Hardy perennial herb with soap-like sap in roots and leaves, bearing clusters of pink or white flowers; ideal for borders and rock gardens.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Common Soapwort
Family Caryophyllaceae
Genus Saponaria
Species Officinalis
Origin Europe / Western Asia
Blooming Late spring to autumn, occasionally reblooms
Leaf Color Grey-green / Blue-green
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
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Care & Maintenance

terrain
Soil

Moist but well-drained soil, tolerates clay and alkaline conditions

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Watering

Moderate water during growth, drought tolerant once established, avoid waterlogging

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Sunlight & Care

Full sun for maximum flowering, tolerates partial shade in hot climates

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Fertilization

Low nutrient requirements, apply compost or balanced fertilizer in early spring

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Pruning

Deadhead spent flowers to encourage reblooming, cut back by half after flowering

Pest Control Aphid 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 5 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
agriculture Harvesting 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
thermostat

Growing Parameters

thermostat
Temperature
5° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
20% – 90%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 60000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
800 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
30% – 70%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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