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Euphorbia amygdaloides var. robbiae

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© RHS 1983

Characteristics

Plant type

Herbaceous Perennial

Habit

Suckering

Toxicity

All parts are highly toxic by ingestion; sap may irritate skin and eyes

Resilience

Hardiness

old H4 (hardy)

Colour

Flower

Green and Yellow in Spring and Summer

Foliage

Dark Green in Autumn, Spring, Summer and Winter

Size

Ultimate height

0.1-0.5 metres

Ultimate spread

1-1.5 metres

Time to ultimate height

2-5 years


Preferred common name

Mrs Robb's bonnet

Family

Euphorbiaceae


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

E. amygdaloides var. robbiae is a spreading evergreen perennial to 50cm in height, forming colonies of rosettes of oblong, dark green leaves from which arise large rounded sprays of yellow-green flowers

Synonym(s)

  • Euphorbia robbiae

How to grow

Sunlight

  • Full sun
  • Part shade
  • Full shade

Aspect

  • East-facing, West-facing or South-facing
  • Exposed or Sheltered

Cultivation

An easy-to-grow plant that will cope with most conditions even dry shade. It spreads by rhizomes and can be invasive

Soil

  • Moist but well-drained or Well-drained
  • Acid, Alkaline or Neutral
  • Chalk, Loam or Sand

Propagation

Propagate by division in spring

Suggested planting locations and garden types

City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds, Ground Cover or Low Maintenance


How to care

Pruning

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

Pests

Aphids may be a problem

Diseases

May be subject to grey moulds