• 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

Salix aegyptiaca

musk willow

musk willow

© RHS

  • Other common names musk willow
    Calaf of Persica willow

  • Family Salicaceae

  • Genus Salix are deciduous shrubs and trees of diverse habit, with simple leaves and tiny flowers in catkins, male and female usually on separate plants. Some are valued for their brightly coloured winter shoots, others for their foliage or showy male catkins

  • Details S. aegyptiaca is a bushy shrub or small tree with red-purple shoots and oblong, dark green leaves up to 15cm long. Fragrant, silvery, male and female catkins are borne on separate trees in late winter or early spring, before the leaves open. Male catkins are up to 4cm long with bright yellow anthers; female catkins up to 8cm long

  • Plant range SW to C Asia

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Flower

  • 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

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

  • Exposure Exposed or Sheltered

Soil

  • Loam

    Loam

  • Clay

    Clay

  • Sand

    Sand

  • MoistureMoist but well-drained, Poorly-drained

  • SoilLoam, Clay, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 4-8 metres

  • Ultimate spread 4-8 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grow in any deep, moist soil in full sun

Propagation Propagate by softwood or hardwood cuttings

Suggested planting locations and garden types Low Maintenance Hedging & Screens Coastal Wildlife Gardens

How to care

Pruning Pruning group 1

Pests Can get aphids, caterpillars, leaf beetles and sawflies

Diseases May be subject to willow anthracnose and rust diseases

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