Cheiranthus cheiri

Wallflower

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A fragrant biennial from Southern Europe with grey-green foliage and clusters of yellow, orange, or red flowers in spring.
yard Outdoor plants wb_sunny Half-shade / Sun pets Pet Friendly
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Plant Details

Common Name Wallflower
Family Brassicaceae
Genus Cheiranthus
Species Cheiri
Origin Southern Europe
Blooming Spring flowering, highly fragrant
Leaf Color Grey-green to blue-green
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly check Yes
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Care & Maintenance

terrain
Soil

Well-drained, fertile loam or potting mix with perlite for drainage

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Watering

Keep soil moderately moist during growth and flowering; reduce watering when dormant to prevent root rot

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Sunlight & Care

Requires full sun to produce flowers; tolerates partial shade in hot climates

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Fertilization

Apply balanced liquid fertilizer monthly during active growing season (spring)

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Pruning

Deadhead spent flowers immediately to prolong bloom period or cut back after flowering for biennial cycle

Pest Control Aphid Diamondback Moth Larva Flea Beetle

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
46° – 77°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
6000 – 14000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1200 – 3000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
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Soil Moisture
30% – 50%
% volumetric
Water content in the growing medium
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Soil EC
400 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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