Ritro

Echinops ritro L.

£6.00

Plant profile · availability to be confirmed

Introducing Globe Thistle 'Ritro' – a striking perennial powerhouse with vibrant blue spherical flowers that bloom July through September, perfect for borders, coastal gardens, and wildlife spaces. This hardy, drought-resistant beauty thrives in full sun with minimal fuss, reaching an impressive 60cm height while requiring just free-draining soil and medium growing skill. Ideal for cut flower arrangements and exposed garden positions, it's a versatile, low-maintenance choice that adds architectural interest to any garden scheme.

A CLOSER LOOK

Plant details.

LifecyclePerennial
HabitClump-forming
Foliage typeDeciduous

Suitability: Borders, Coastal gardens, Cottage gardens, Cut flower gardens, Gravel gardens, Wildlife gardens, City and courtyard gardens
Position: Border | Back, Cutting Garden
Light: Full sun, Partial shade
Soil moisture: Free draining
Soil acidity: Neutral, Acid, Alkaline
Soil type: Chalk, Loam, Sandy
Hardiness: H7 [-20] Very Hardy | Very cold winter
Time to maturity: 2–5 Years
Exposure: Exposed
Mature height: 0.5–1 m
Mature spread: 0.1–0.5 m
Foliage colour: Green
Flower colour: Blue
Growing skill: Medium
Genus: Globe Thistle | Echinops
Aspect: East, South, West
Drought resistance: Drought Resistance

Through the seasons

A year at a glance

Flowering

Jul–Sep

In leaf

Mar–Oct

Sow indoors

Feb–May, Aug–Sep

Filled months show recorded activity. Timing can vary with climate and growing conditions; unfilled months are not recorded.

GETTING TO KNOW YOUR PLANT

A happy plant
starts here.

Every plant grows a little differently. Your new arrival’s shape and size may vary from the photograph.

Growing conditions+

Position: Full sun, Partial shade. Soil: Well-drained.

Winter hardiness+

RHS rating: H7 (UK growing conditions). See the source profile for cultivation advice.

Plant information sources+

Growing details checked against the sources below. Ultimate size depends on growing conditions.

RHS · Echinops ritro L.

THE GREENHOUSE JOURNAL

Life with Ritro.

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Ritro