Echinops bannaticus 'Taplow Blue'

RHS Plant Profile

globe thistle 'Taplow Blue'

Synonyms

Echinops 'Taplow Blue'
Echinops ritro 'Taplow Blue'
Eryngium 'Taplow Blue'

Herbaceous Perennial

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A robust, upright herbaceous perennial, with divided, prickly dark green leaves whitish beneath. Rounded, steel-blue flower heads on branched, leafy stems

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: 1-1.5 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing or East–facing
Exposure: Exposed
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H7
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asteraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Echinops can be annuals, biennials or perennials with simple or pinnately lobed, spiny leaves and spherical blue or whitish flower-heads
Name Status: Accepted

How to Grow

Cultivation

Best in poor, well-drained soil in full sun but will tolerate most soils in full sun and can tolerate partial shade

Propagation

Propagate by seed sown in seed bed in mid spring. Propagate by division in spring or autumn. Propagate by root cuttings in winter

Suggested planting locations and garden types

Wildlife gardens
Cottage and informal garden
Gravel garden
Cut flowers
Flower borders and beds

Pruning

Deadhead to prevent self-seeding

Pests

May be susceptible to aphids

Diseases

Generally disease-free