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Herbaceous Perennial

Eryngium pandanifolium 'Physic Purple'

eryngo 'Physic Purple'

'Physic Purple' is an evergreen, herbaceous perennial with blue-green, sword-shaped leaves up to 2m long. Small, cone-like clusters of tiny red-purple flowers are produced on massive, branched flower stems up to to 4mtall, in from late summer to mid autumn

Synonyms

Eryngium pandanifolium purple

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Ultimate height

2.5–4 metres

Time to ultimate height

2–5 years

Ultimate spread

1.5–2.5 metres

Chalk

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing or East–facing

Exposure

Sheltered

Drought resistance

Yes

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)

Botanical details

Family: Apiaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Clump forming, Tufted
Genus: Eryngium can be annuals, biennials or perennials with simple or divided leaves, often spiny edged, and cone-like flower-heads often surrounded by an involucre of conspicuous spiny bracts
Name status: Accepted

How to grow

Cultivation

Requires a sheltered position in moist, well drained fertile soil in full sun

Propagation

Divide clumps in spring, although they may be slow to re-establish, or take root cuttings in late winter

Suggested planting locations and garden types

Coastal
Architectural
Cottage and informal garden
Flower borders and beds

Pruning

Cut back old flowering stems after they have finished

Pests

May be susceptible to leaf and bud eelworms, and slugs and snails

Diseases

May be susceptible to root rot and powdery mildews

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