Euphorbia × martini Walberton's Ruby Glow ('Waleuphglo')

RHS Plant Profile
Martin's spurge [Walberton's Ruby Glow]

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Synonyms

Euphorbia × martini 'Waleuphglo'
Euphorbia amygdaloides 'Waleuphglo'
Euphorbia amygdaloides Ruby Glow

Plants for pollinators
Herbaceous Perennial Shrubs
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A compact, evergreen, perennial sub-shrub, forming a mound of stems to 60cm (24in) high and 45cm (18in) in diameter, bearing lance-shaped leaves, red-purple when young and dark, purple-green when mature. Bright, yellow-green heads of floral bracts are born on red stems in late spring and early summer

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

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

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
Sheltered
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)
H5
Drought Resistance
Yes

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Euphorbiaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Potentially harmful
Humans/Pets: IRRITANT to skin/eyeharmful 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

Grows best in mild areas in light, well-drained soil in full sun. See Euphorbia for further advice

Propagation

Propagate by 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
  • Mediterranean climate plants
  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants
  • Wildlife gardens
  • Flower borders and beds

Pruning

Cut back old, flowered stems to the ground in late summer and autumn

Pests

Generally pest-free

Diseases

Generally disease-free