• AGM plants

    AGM plants have been through a rigourous 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

Rosa 'Duc de Guiche' (G)

Rose 'Duc de Guiche'

AGM plants

AGM plants have been through a rigourous 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
Rose 'Duc de Guiche'

© � RHS 1993

  • Other common names Rose 'Duc de Guiche'

  • Genus Rosa can be deciduous or semi-evergreen shrubs or scrambling climbers, with usually thorny stems bearing pinnate leaves and solitary or clustered, 5-petalled flowers followed by showy red or purple fruits

  • Family Rosaceae / Rosaceae

  • Species 'Duc de Guiche' is a small shrub to 1.2m, of open, arching habit, with plentiful foliage and very fragrant double, quartered purplish-crimson flowers 8cm in width

  • Horticultural Group Gallica roses are compact, prickly shrubs with dull green foliage and generally fragrant, single to double flowers in small clusters in mid-summer

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Flower

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H7

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing or East-facing

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Clay

  • Chalk

    Chalk

  • Chalk

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Clay, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    1-1.5 metres

  • Ultimate spread

    1-1.5 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Will grow in wide range of situations. Rose with spreading habit

Propagation Propagate by hardwood cuttings in autumn or by budding in summer

Suggested planting locations and garden types Cut Flowers Flower borders and beds Low Maintenance Wall-side Borders

How to care

Pruning Pruning group 23 (roses)

Pests Aphids, leafhoppers, glasshouse red spider mite, scale insects, caterpillars and rose leaf-rolling sawfly may be a problem. Rabbits and deer can cause damage

Diseases May be subject to black spot, rose rust, powdery mildews and a downy mildew

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