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Choose your climateBased on winter hardiness only.

Perennial · Asteraceae family

Southern Globe Thistle

Echinops ritro

Full sun 2 ft 11⅜ in–3 ft 11¼ in × 1 ft 11⅝ in–2 ft 5⅞ in Flowers July–September to −99 °F
Flower colors Click a color

In short a 10-second read

SunFull sun
Size2 ft 11⅜ in–3 ft 11¼ in
spacing 22¾ in
FlowersJuly–September
PlantingMarch–May, September–November
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun, in dry to average soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

acidic to neutral soil
acidicneutralalkaline
dry to averagenot fussy about soil

Watering

drought tolerant once establishedless when it rains

Frost

−99 °F
no winter protectiondies back in winter, regrows in spring

How much space it takes

Mature size.

The mature plant next to a person (69 in).

19¾ in3 ft 3⅜ in4 ft 11 in2 ft 11⅜ in–3 ft 11¼ inspread 1 ft 11⅝ in–2 ft 5⅞ in
2 ft 11⅜ in–3 ft 11¼ in× spread 1 ft 11⅝ in–2 ft 5⅞ in

Plant 22¾ in apart.

Reaches maturity in about 2–5 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Typical for a temperate climate (four seasons). The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberPlanting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberFeeding: JanuaryFeeding: FebruaryFeeding: MarchFeeding: AprilFeeding: MayFeeding: JuneFeeding: JulyFeeding: AugustFeeding: SeptemberFeeding: OctoberFeeding: NovemberFeeding: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersPlantingFeeding
Now, in October: a good time for planting (container plant).
JanFebMarAprMayJunJulAugSepOctNovDec

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

July–September · blue

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–May, September–November

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

March–May

Feeding

Nutrition.

Light
balanced fertilizercompost or mulch
JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

What you will see

Colonies on shoot tips and young leaves, sticky honeydew.

When to look

Spring – summer

How to protect

  1. Prevention
    • Check plants often and act early.
    • Encourage ladybirds, hoverflies, ground beetles and ichneumon wasps.
  2. By hand spring and summerSquash colonies with your fingers; wipe off honeydew with a damp cloth.
  3. Biological April to JuneLeave natural enemies to work; populations often catch up in spring.
Aphidspest · spring – summer

What you will see

Colonies on shoot tips and young leaves, sticky honeydew.

When to look

Spring – summer

How to protect

  1. Prevention
    • Check plants often and act early.
    • Encourage ladybirds, hoverflies, ground beetles and ichneumon wasps.
  2. By hand spring and summerSquash colonies with your fingers; wipe off honeydew with a damp cloth.
  3. Biological April to JuneLeave natural enemies to work; populations often catch up in spring.
More about this problem
Sources (2)

Frequently asked

Quick answers.

When does Southern Globe Thistle flower?

In July–September; the flowers are blue.

Does Southern Globe Thistle tolerate shade?

No, it needs full sun.

How much space does Southern Globe Thistle need?

At maturity 1 ft 11⅝ in–2 ft 5⅞ in wide and 2 ft 11⅜ in–3 ft 11¼ in tall; recommended spacing 22¾ in.

Aphids — what can you do?

Check plants often and act early. Squash colonies with your fingers; wipe off honeydew with a damp cloth.

Sources (15) Checked 28 September 2026

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