Euphorbia 'Blue Haze'

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spurge 'Blue Haze'

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spurge 'Blue Haze' RHS
spurge 'Blue Haze' Dorling Kindersley Ltd
spurge 'Blue Haze' Dorling Kindersley Ltd
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Herbaceous Perennial
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A compact, mound-forming, evergreen perennial, to 45cm high and around 60cm wide, with upright or sprawling stems bearing blue-grey, narrow, lance-shaped leaves. Clusters of tiny yellow flowers, surrounded by yellow-green bracts, are borne from spring to midsummer

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
0.1-0.5 metres

Growing Conditions

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

Position

Full sun
Aspect
West–facing or South–facing
Exposure
Exposed or 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

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
Accepted

How to Grow

Cultivation

Grow in well-drained soil in full sun. 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

  • Cottage and informal garden
  • City and courtyard gardens
  • Gravel garden
  • Wildlife gardens
  • Low Maintenance
  • Flower borders and beds

Pruning

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

Pests

Generally pest-free

Diseases

May be susceptible to a rust