• 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 virginiana

American dwarf wild rose

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
American dwarf wild rose

© RHS

  • Other common names American dwarf wild rose
    shining-leaved rose

    Virginian rose

    see more
  • Synonyms Rosa lucida

  • 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

  • Details R. virginiana is a medium-sized, upright, suckering species with a touch of blue-grey to the foliage. The flowers are single, about 6cm across, and may be pale or bright pink. They are followed by red, pumpkin-shaped hips

  • Plant range E USA

Characteristics

  • Foliage Deciduous

  • Habit Suckering

  • 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)

    H7

Colour

Sunlight

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Loam

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Clay, 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 Grows best in fertile, humus-rich, moist but well-drained soil in a sunny, open position. Mulch in late winter and, to improve flowering, apply a balanced fertiliser in late winter or early spring

Propagation Propagate by semi-ripe cuttings in late summer or hardwood cuttings in autumn

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

How to care

Pruning Pruning group 20

Pests Aphids, including rose aphid, are the most common rose pest. Can also be affected by leafhoppers, glasshouse red spider mite, scale insects, caterpillars, large rose sawfly, rose leaf-rolling sawfly and leaf-cutter bees. Deer and rabbits can also cause damage

Diseases Rose black spot, rose rust and rose powdery mildew are the most common rose diseases. Can also be affected by rose dieback, replant disease, canker, honey fungus and a virus

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