Echium vulgare

Common Viper's-bugloss

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A prickly biennial herb with blue-violet flowers, native to Europe and North Africa. Thrives in dry, sunny conditions.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
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Plant Details

Common Name Common Viper's-bugloss
Family Boraginaceae
Genus Echium
Species Vulgare
Origin Europe, North Africa
Blooming Blue-purple flowers in summer, attracts pollinators.
Leaf Color Grey-green foliage with blue-purple blooms
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-drained, poor to average soil, tolerates drought and rocky substrates.

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Watering

Low water needs once established; allow soil to dry between waterings.

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Sunlight & Care

Full sun required for best flowering; tolerate partial shade in hot climates.

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Fertilization

Minimal fertilization needed; avoid high nitrogen to prevent lodging.

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Pruning

Deadhead spent flowers to control self-seeding and maintain shape.

Pest Control Aphid Caterpillar 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
thermostat

Growing Parameters

thermostat
Temperature
14° – 100°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
25% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
10000 – 50000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
2000 – 4500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
10% – 40%
% 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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