• 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

Linaria purpurea 'Canon Went'

purple toadflax 'Canon Went'

  • Other common names purple toadflax 'Canon Went'

  • Family Plantaginaceae

  • Genus Linaria can be annuals, biennials or herbaceous perennials, with simple leaves and terminal racemes of 2-lipped flowers with conspicuous spurs

  • Details 'Canon Went' is an erect perennial of slender habit, with linear leaves and long racemes of pale pink flowers in summer and autumn

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)

    H6

Colour

Sunlight

  • Full Sun

  • Aspect South-facing

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • MoistureWell-drained

  • SoilSand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.5-1 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in moderately fertile, light, well-drained soil; sandy soil is ideal. Full sun essential

Propagation Propagate by seed in pots in a cold frame in early spring; self-seeds true if isolated from other forms of the species. Propagate by division or softwood cuttings in spring

Suggested planting locations and garden types Flower borders and beds Wall-side Borders Cottage & Informal Garden Gravel Garden Mediterranean Climate Plants

How to care

Pruning After flowering, plants can be cut back to prevent self-seeding

Pests May be attacked by aphids

Diseases May be affected by powdery mildews

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