• 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

Rosa sericea subsp. omeiensis f. pteracantha (S)

winged thorn rose

winged thorn rose

© RHS

  • Other common names winged thorn rose

  • Family Rosaceae

  • 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

  • Horticultural Group Shrub roses are large shrubs with usually thorny stems bearing large leaves and fragrant, single to double flowers in clusters in summer, and usually also in autumn

  • Details R. sericea subsp. omeiensis f. pteracantha is a vigorous upright shrub with large flat crimson prickles on the young growth, neat, fern-like foliage and small, four-petalled creamy-white flowers in summer, followed by small orange-red hips

  • Plant range W China

Characteristics

  • Foliage Deciduous

  • 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)

    H5

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Clay

    Clay

  • Loam

    Loam

  • Sand

    Sand

  • Chalk

    Chalk

  • MoistureMoist but well-drained, Well-drained

  • SoilClay, Loam, Sand, Chalk

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 1.5-2.5 metres

  • Ultimate spread 1.5-2.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Suited to a wide range of situations but best in an open site in full sun, where ruby-red young thorns can be appreciated. Grow in moderately fertile, humus-rich, moist but well-drained soil - see rose cultivation. Tolerant of poor soil and shade

Propagation Propagate by hardwood cuttings in late summer or autumn or by chip budding in summer. Propagate by seed; species roses can be propagated by seed but need stratification and germination may take two seasons

Suggested planting locations and garden types Flower borders and beds Cottage & Informal Garden Wildlife Gardens

How to care

Pruning Pruning group 23 (roses)

Pests May be susceptible to aphids including rose root aphid, rose leafhopper, scale insects, large rose sawfly, rose leaf-rolling sawfly and rose slugworm

Diseases May be subject to black spot, rose dieback, grey mould, rose rust, rose powdery mildew and downy mildew, rose sickness or replant disease and a virus

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