• 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

Arisarum proboscideum

mouse plant

mouse plant

© RHS

  • Other common names mouse plant
    mousetail plant

  • Family Araceae

  • Genus Arisarum are small perennials that develop from tubers or rhizomes. They produce dense clumps of long-stalked, heart- or arrow-shaped leaves and clustered, tiny flowers wrapped in curious hooded spathes

  • Details A. proboscideum is a rhizomatous perennial producing mats of arrow-shaped, glossy, green leaves up to 15cm long. The flowers appear in spring; a dark purple-brown spathe with a long narrow tip, like a mouse's tail, and a white base

  • Plant range SW Spain, C & S. Italy

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Toxicity Toxic by ingestion

  • 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

  • Partial Shade

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

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilLoam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Needs woodland conditions - a moist, humus-rich soil in partial shade

Propagation Propagate by seed sown in containers in a cold frame in spring, or by division in autumn or winter

Suggested planting locations and garden types Cut Flowers Flower borders and beds Garden Edging Underplanting of Roses and Shrubs City & Courtyard Gardens Cottage & Informal Garden Rock Garden

How to care

Pruning No pruning needed

Pests Usually trouble free

Diseases Usually trouble free

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