ECHINOPS ritro

Globe Thistle

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Type:

Perennial
Height: 3-4' (90-120cm)
Flowering Time: Summer
Flower Colour: Blue
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Botanical Classification:

Class:

Angiospermae (Angiosperms)
Subclass: Dicotyledonae (Dicotyledons)
Superorder: Asteridae (Daisy Superorder)
Order: Asterales (Daisy Order)
Family: Asteraceae (Daisy Family)
Genus: Echinops (Globe Thistle)
Species: ritro
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Echinops ritro is a very useful ground-cover plant. Although it is deciduous, it quickly produces a large basal rosette of pale green prickly leaves which are grey underneath, and in late summer bears strong stems three or more feet high topped with soft steely blue spiky balls composed of many individual starry flowers each in a ribbed calyx.

These can be dried for use in dried-flower arrangements, but need to be picked before they are past their best, as otherwise they do not dry well.

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Harvesting and Growing from Seed:

Seed Pod

There is no seed pod. The flower head becomes a prickly seed head, with each individual flower producing a stiff spiky calyx holding the seed.

Seed

The seeds are smooth brown oblongs. Each separate calyx on the seedhead holds one woody seed, so the seedhead holds many seeds.

Seedling

The seedling is large, and the first true leaf is long and thin.

Seed sowing and Germination

Autumn: Seeds sown outside in autumn germinated in 5 days.

(You can check the meaning of any technical terms new to you in the Botany section of the site)

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