• 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

Geranium robertianum

herb robert

  • Other common names herb robert
    death-comes-quickly

    dragon's blood
    fox geranium
    fox grass
    Jenny Wren
    kiss-me-quick
    knife and fork
    little bachelor's buttons
    little red robin
    nightingales
    pink bird's eye
    pink pinafore
    red bird's eye
    red robin
    redshanks
    St Robert's herb
    stinking Robert
    wren flower

    see more
  • Synonyms Geranium 'Dragon's Blood'

  • Family Geraniaceae

  • Genus Geranium can be annuals, biennials and perennials, herbaceous or evergreen, with rounded, usually palmately lobed or divided leaves, and lax inflorescences of rounded, 5-petalled flowers

  • Details G. robertianum is an annual or biennial to 30cm, forming a rosette of deeply dissected, aromatic leaves, with large, open sprays of pale pink flowers 1cm across in summer and autumn

  • Plant range Temp. N. Hemisphere

Characteristics

  • Foliage Deciduous

  • Habit Spreading / Branched

  • Fragrance Leaf

  • 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)

    H6

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Chalk

  • Clay

    Clay

  • Sand

    Sand

  • Loam

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilChalk, Clay, Sand, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 1-2 years

How to grow

Cultivation Good for rock garden or effective as groundcover

Propagation Propagate by seed, basal cuttings or division

Suggested planting locations and garden types Low Maintenance Wildflower meadow Wildlife Gardens

How to care

Pruning Remove flowered stems and old leaves to encourage the production of fresh leaves and flowers

Pests Generally pest free

Diseases May be affected by a downy mildew and powdery mildews

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