Cistus × cyprius var. ellipticus 'Elma'

RHS Plant Profile
rock rose 'Elma'

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rock rose 'Elma' RHS 2000

Synonyms

Cistus laurifolius 'Elma'
Cistus 'Elma'
Cistus × cyprius 'Elma'
Cistus 'Elma Colicte'
Cistus × dansereaui 'Elma'
Cistus × cyprius var. ellipticus f. bicolor 'Elma'

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Shrubs
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A bushy evergreen shrub with shiny dark green lanceolate leaves and un-blotched white flowers to 10cm in width

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
5–10 years
Max Spread
1-1.5 metres
Max Height
1-1.5 metres

Growing Conditions

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

Position

Full sun
Aspect
South–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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Cistaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Genus
Cistus are evergreen shrubs with simple, opposite leaves and 5-petalled, bowl-shaped, white, pink or purplish flowers, each lasting a single day, over a long period in summer
Name Status
Accepted

How to Grow

Cultivation

Will grow well in poor soils but may become chlorotic with age on chalky soils. Needs a sheltered position in full sun

Propagation

Propagate by softwood cuttings

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Coastal
  • Mediterranean climate plants
  • Banks and slopes
  • Flower borders and beds
  • Wall side borders

Pruning

Pruning group 8 or pruning group 9. Does not respond to hard pruning

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus