• 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

Rhamnus alaternus 'Argenteovariegata' (v)

Italian buckthorn 'Argenteovariegata'

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
Italian buckthorn 'Argenteovariegata'

© RHS 2002

  • Other common names Italian buckthorn 'Argenteovariegata'

  • Synonyms Rhamnus alaternus 'Variegata'

  • Family Rhamnaceae

  • Genus Rhamnus can be deciduous or evergreen shrubs or trees, often thorny, with simple leaves that may colour well in autumn, and tiny yellowish flowers followed by fruit that is typically black

  • Details 'Argenteovariegata' is a large, bushy evergreen shrub, with small, leathery, ovate leaves greyish-green with creamy-white margins. Inconspicuous yellow flowers followed by small berries, red turning black

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • Toxicity All parts may cause severe discomfort if ingested

  • 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

  • Exposure Sheltered

Soil

  • Chalk

    Chalk

  • Chalk

    Loam

  • Chalk

    Sand

  • Chalk

    Clay

  • MoistureMoist but well-drained, Well-drained

  • SoilChalk, Loam, Sand, Clay

  • pHAcid, Neutral, Alkaline

Size

  • Ultimate height 2.5-4 metres

  • Ultimate spread 2.5-4 metres

  • Time to ultimate height 20-50 years

How to grow

Cultivation An easy to grow, vigorous, evergreen shrub. Not reliably hardy and needs some shelter in the colder more exposed areas but is valuable for coastal planting

Propagation Propagate by semi-hardwood cuttings in summer

Suggested planting locations and garden types Drought Resistant Low Maintenance Coastal

How to care

Pruning Pruning group 1

Pests Generally pest free

Diseases Generally disease free

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