Cirsium vulgare

Spear Thistle

WhatsApp
A robust biennial herb with spiny leaves and purple flower heads, native to Eurasia but invasive globally. Not suitable for indoor cultivation due to physical hazards.
yard Outdoor plants wb_sunny Sun pets Not pet-safe
info

Plant Details

Common Name Spear Thistle
Family Asteraceae
Genus Cirsium
Species Vulgare
Origin Europe / Asia
Blooming Summer to early autumn, purple flower heads
Leaf Color Green with white spines and woolly undersides
Sunlight Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-drained, fertile soil; tolerates poor and disturbed ground

water_drop
Watering

Moderate watering, drought tolerant once established

light_mode
Sunlight & Care

Requires full sun exposure for optimal growth and flowering

science
Fertilization

Low maintenance, minimal fertilizer needed unless soil is very poor

content_cut
Pruning

Remove dead flower heads to prevent invasive self-seeding

Pest Control Aphid Caterpillar Thrip

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

calendar_month

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
-4° – 104°
Fahrenheit
Ideal ambient air temperature range for healthy growth
water_drop
Humidity
30% – 80%
% relative
Optimal relative air humidity the plant thrives in
light_mode
Light (LUX)
3000 – 60000
Lux
Ambient illuminance level at the plant's surface
wb_sunny
Light (PAR)
100 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
15% – 70%
% volumetric
Water content in the growing medium
bolt
Soil EC
200 – 1500
mS/cm
Electrical conductivity (nutrient concentration in soil water)

Related Plants

You might also like these plants

Browse All ›
Cirsium japonicum
parkOutdoor plants
Cirsium japonicum

Japanese Thistle

account_treeAsteraceae location_onChina, Japan, Korea

info Price unavailable

Echium vulgare
parkOutdoor plants
Echium vulgare

Common Viper's-bugloss

account_treeBoraginaceae location_onEurope, North Africa

info Price unavailable

Polypodium vulgare Cornubiense
parkOutdoor plants petsPet friendly
Polypodium vulgare Cornubiense

Cornish Rock Fern

account_treePolypodiaceae location_onUnited Kingdom

info Price unavailable

Achillea aegyptiaca
parkOutdoor plants petsPet friendly
Achillea aegyptiaca

Egyptian Yarrow

account_treeAsteraceae location_onEgypt / North Africa

info Price unavailable

favorite