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Herbaceous Perennial

Euphorbia Excalibur ('Froeup'PBR)
  • RHS Plants for pollinators

spurge [Excalibur]

An upright perennial with young foliage wine-red in early spring, later grey-green, with sprays of bright yellow flower-heads in summer

Synonyms
Euphorbia 'Froeup'PBR
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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Yellow Red
Summer Grey Silver
Autumn
Winter
Position
  • Partial shade
Aspect

West–facing or East–facing or South–facing or North–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Euphorbiaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Humans/Pets: IRRITANT to skin/eye, harmful if eaten. Wear gloves and other protective equipment when handling. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus

Euphorbia can be annuals, perennials, shrubs or succulents, with milky sap and small flowers held within cupped, often colourful bracts

Name status

Trade

How to grow

Cultivation

Grow in moist, humus-rich soil in light dappled shade. See Euphorbia for further advice

Propagation

Propagate by division in early spring or take basal cuttings in spring or early summer; dip cut surfaces in charcoal or lukewarm water to prevent bleeding

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
  • Flower borders and beds
Pruning

Cut back flowering shoots to ground level in late summer or autumn

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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