• 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

Hypochaeris radicata

cat's ear

cat's ear

© RHS

  • Other common names cat's ear
    Australian cape weed

    California dandelion

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  • Family Asteraceae

  • Genus Hypochaeris can be annuals or herbaceous perennials forming a basal rosette of leaves, with lax cymes of dandelion-like yellow flowers in summer

  • Details H. radicata is a rosette-forming perennial with hairy, oblong leaves with large, sinuate teeth, and bright yellow, dandelion-like flower heads 3-4cm wide on branched, leafless stems in summer and early autumn

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)

    H4

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Exposed

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained, Moist but well-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0-0.1 metre

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in a wild flower meadow. Leaves can be used as a salad plant in the winter

Propagation Propagate by seed

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

How to care

Pruning No pruning required

Pests Generally trouble free

Diseases Generally trouble free

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