• 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

Tibouchina urvilleana

glory bush

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
glory bush

© RHS 2002

  • Other common names glory bush
    lasiandra

    pleroma
    princess flower
    purple glory tree

    see more
  • Synonyms Tibouchina semidecandra misapplied

  • Family Melastomataceae

  • Genus Tibouchina can be evergreen shrubs or herbaceous perennials, with simple, prominently veined leaves and saucer-shaped flowers with conspicuous stamens

  • Details T. urvilleana is a lax evergreen shrub to 4m or more, with elliptic, softly hairy leaves with prominent longitudinal veins and rich violet-purple flowers 6-10cm across, with exserted, blackish stamens

  • Plant range S Brazil

Characteristics

  • Foliage Evergreen

  • 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)

    H2

Colour

Sunlight

  • Full Sun

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

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • Chalk

    Chalk

  • Sand

    Sand

  • MoistureWell-drained, Moist but well-drained

  • SoilLoam, Chalk, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 2.5-4 metres

  • Ultimate spread 1.5-2.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Under glass grow in loam-based compost in full light with shade from hot sun. Water freely in summer but keep just moist in winter. Can be grown outdoors in moist, fertile, well drained soil in frost-free area

Propagation Propagate by seed sown at 16°C in spring or strike softwood cuttings in late spring and semi-hardwood cuttings in summer, both with bottom heat

Suggested planting locations and garden types Wall-side Borders Architectural City & Courtyard Gardens Mediterranean Climate Plants Patio & Container Plants

How to care

Pruning Pruning group 9. Plants grown under glass may need restrictive pruning in late winter

Pests May be attacked by aphids, mealybugs and glasshouse whitefly

Diseases May be affected by oedema under glass

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