• 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 phaeum 'Rose Madder'

dusky cranesbill 'Rose Madder'

  • Other common names dusky cranesbill 'Rose Madder'

  • 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 'Rose Madder' is a clump-forming herbaceous perennial, to 60cm high, with deciduous, lobed, green leaves blotched with purplish-brown. Reflexed flowers, brownish-pink shading to dark reddish-pink then lavender-grey at the centre, appear from late spring to early summer

Characteristics

  • Foliage Deciduous

  • Habit Clump-forming

  • 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)

    H7

Colour

Sunlight

  • Partial Shade

  • Full Sun

  • Full Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilSand, Clay, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.5-1 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in sun or shade in moist but well-drained soil; good in damp shade

Propagation Propagate by division in spring, or by basal softwood cuttings taken in spring and rooted with bottom heat

Suggested planting locations and garden types Flower borders and beds Low Maintenance Underplanting of Roses and Shrubs Wildlife Gardens Cottage & Informal Garden

How to care

Pruning Cut back flowered stems and old leaves to encourage fresh growth

Pests May be affected by capsid bug, geranium sawfly, vine weevil, slugs and snails

Diseases A rust, downy mildews, leafy gall and a virus may be troublesome. Powdery mildews can be a problem in dry conditions

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