• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Cistus × hybridus

hybrid rock rose

  • Other common names hybrid rock rose

  • Synonyms Cistus acutifolius Sweet
    Cistus coeris

    Cistus × corbariensis
    Cistus × hybridus var. corbariensis

    see more
  • Family Cistaceae

  • 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

  • Details C. x hybridus is a bushy, dense, evergreen shrub to 1m tall with wavy-edged and wrinkled leaves. White flowers with yellow centres are freely produced in summer emerging from red buds

  • Plant range S Europe

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • 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

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.5-1 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grows best in well-drained, poor, sandy, soil in a sheltered site in full sun. Generally lime-tolerant, but may become chlorotic on very chalky soils

Propagation Propagate by softwood or semi-ripe cuttings

Suggested planting locations and garden types Banks and Slopes Flower borders and beds Coastal Gravel Garden Mediterranean Climate Plants Rock Garden City & Courtyard Gardens Cottage & Informal Garden

How to care

Pruning Pruning group 8; they do not respond well to hard pruning so old, leggy plants are best replaced. Pinch back young plants after flowering to encourage a bushy habit

Pests Generally trouble free

Diseases Generally trouble free

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