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A picture of a Blue Hedgehog

Blue Hedgehog

Echinops ritro

Echinops-ritro by da.wikipedia (CC BY-SA 3.0)

Full Sun
Moderate care
Light watering
Frost Hardy

6a

USDA zone

-23°C

Minimum temperature

Expected size

Height
Spread

1m

Max

50cm

50cm

Min

10cm

2 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

More images

Echinops July 2011-1
A photo of Blue Hedgehog
A photo of Blue Hedgehog
A photo of Blue Hedgehog
Echinops ruthenicus (in habitat) 5

Overview

Echinops ritro is a herbaceous perennial species that grows to around 1m tall, with an upright, robust growth habit. It produces spiky, jaggedly-divided dark green foliage which resembles that of thistles, coloured white underneath. Flowers are thistly, spherical and coloured violet-blue, borne on branching, silvery-coloured, leafy stems.

Common problems

Propagation

Cuttings

Root cuttings may be taken in winter.

Division

Divide in spring or autumn.

Seed

Sow mid-spring, capable of self-seeding.

Special Features

Attractive flowers