• 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

Malva alcea

greater musk mallow

  • Other common names greater musk mallow
    hollyhock mallow

    vervain mallow

    see more
  • Family Malvaceae

  • Genus Malva can be annuals, biennials or perennials, with rounded, often palmately lobed leaves and 5-petalled, open funnel-shaped flowers in the leaf axils or in terminal racemes

  • Details M. alcea is a perennial with erect or spreading stems to 120cm, sometimes more. Upper leaves usually very deeply divided, soft green. Flowers bright pink, saucer-shaped, in axillary and terminal clusters and produced over a long flowering season. Flowers and leaves similar to those of the native M. moschata, but on a much taller plant

  • Plant range SE Europe, Turkey, Caucasus

Characteristics

  • Foliage Deciduous

  • 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)

    H5

Colour

Sunlight

  • Full Sun

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

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilSand, Clay, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 1-1.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Prefers to grow in light, well-drained, moderately fertile soil in full sun. It is likely to need support especially if grown on rich soils - see staking perennials. Can be short-lived

Propagation Propagate by seed. Sow in situ or in containers in early spring or early summer. Take basal cuttings in spring ? see softwood cuttings

Suggested planting locations and garden types Flower borders and beds Low Maintenance Wildlife Gardens Wildflower meadow Cottage & Informal Garden

How to care

Pruning Prune back flowered stems in the autumn

Pests Aphids may be a problem

Diseases Can be affected by a rust and leaf spot

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