Lysimachia clethroides

Candlestick plant

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Herbaceous perennial featuring tall white candle-like flower spikes; native to East Asia, thrives in moist soil and partial shade environments.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
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Plant Details

Common Name Candlestick plant
Family Primulaceae
Genus Lysimachia
Species Clethroides
Origin China / Japan
Blooming Summer to early autumn, white flowers on tall spikes
Leaf Color Dark green
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Rich, moist loam with high organic matter content; retains moisture well without waterlogging.

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Watering

Keep soil consistently moist. Do not allow to dry out completely during the growing season.

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Sunlight & Care

Prefers partial shade in hot climates; full sun in cooler regions with consistent moisture availability.

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Fertilization

Apply balanced slow-release fertilizer in spring before active growth begins annually.

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Pruning

Cut back stems after flowering to maintain shape and encourage potential second bloom flush.

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 4 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
41° – 86°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 20000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1000 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
35% – 75%
% 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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