• 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

Solanum crispum 'Glasnevin'

potato tree 'Glasnevin'

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
  • Other common names potato tree 'Glasnevin'

  • Synonyms Solanum crispum 'Autumnale'

  • Family Solanaceae

  • Genus Solanum can be annuals, perennials, evergreen or deciduous shrubs or twining climbers, with simple or pinnnately lobed leaves and star- or bowl-shaped, 5-lobed flowers with prominent stamens, followed by fleshy fruits

  • Details 'Glasnevin' is a large, scrambling, semi-evergreen climbing shrub with finely-pointed, ovate leaves 5-12cm in length, and fragrant violet-blue flowers 2.5cm in width, in large open clusters. Fruit 6mm, creamy-white

Characteristics

  • Foliage Semi-evergreen

  • Habit Climbing

  • Fragrance Flower

  • Toxicity Ingestion may cause severe discomfort

  • 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 East-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Chalk

    Chalk

  • MoistureMoist but well-drained

  • SoilSand, Clay, Chalk

  • pHAlkaline, Neutral

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grow under glass in loam-based compost in full light light from hot sun, or bright indirect light. Grow outdoors in moist but well-drained fertile soil in neutral to slightly alkaline soil in full sun. Support plants and tie in regularly

Propagation Propagate by semi-hardwood cuttings

Suggested planting locations and garden types Flower borders and beds Low Maintenance Wall-side Borders City & Courtyard Gardens Cottage & Informal Garden

How to care

Pruning Pruning group 12 after flowering

Pests May be attacked by aphids and glasshouse red spider mite

Diseases May be subject to tomato spotted wilt and grey moulds

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