• 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

Brachyglottis monroi

Monro's ragwort

Monro's ragwort

© RHS 1999

  • Other common names Monro's ragwort

  • Synonyms Senecio monroi

  • Family Asteraceae

  • Genus Brachyglottis can be evergreen shrubs, climbers or herbaceous perennials, with simple leaves often white or buff-felted beneath, and clusters of daisy-like flower-heads in summer and autumn

  • Details B. monroi is a small rounded evergreen shrub with dark green, oblong, wavy-edged leaves to 5cm in length, white-felted beneath. Bright yellow flowers 2cm in width are borne in large, branched clusters

  • Plant range NZ, S. Island

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)

    H4

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered or Exposed

Soil

  • Loam

    Loam

  • Chalk

    Chalk

  • Sand

    Sand

  • MoistureWell-drained

  • SoilLoam, Chalk, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.5-1 metres

  • Ultimate spread 1-1.5 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grows in well-drained soils, in sun

Propagation Propagate by semi-hardwood cuttings

Suggested planting locations and garden types Drought Resistant Flower borders and beds Low Maintenance Wall-side Borders City & Courtyard Gardens Coastal

How to care

Pruning Pruning group 8

Pests Generally pest free

Diseases Generally disease free

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