• 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

Primula vialii 'Alison Holland' (So)

Vial's primrose 'Alison Holland'

  • Other common names Vial's primrose 'Alison Holland'

  • Family Primulaceae

  • Genus Primula are herbaceous or semi-evergreen perennials, forming a basal rosette of simple leaves, with salver-shaped or bell-shaped flowers which may be solitary or carried in an umbel or in whorls on an erect stem

  • Details 'Alison Holland' is a rosette-forming, often short-lived perennial forming a clump of mid-green, hairy leaves. Stiff, stout, white mealy stems produce dense spikes of tubular white flowers, pale-green in bud, during summer

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

  • Partial Shade

  • Aspect East-facing or North-facing

  • Exposure Sheltered

Soil

  • Clay

    Clay

  • Loam

    Loam

  • MoistureMoist but well-drained, Poorly-drained

  • SoilClay, Loam

  • pHAcid, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 1-2 years

How to grow

Cultivation Grow in part shade in deep, humus-rich, moist, neutral to acid soil; sun-tolerant if soil is reliably moist at all times

Propagation Propagate by division between autumn and spring, root basal cuttings or offsets in autumn, propagate by root cuttings in winter. Seed propagation has proved unsuccessful

Suggested planting locations and garden types Flower borders and beds Garden Edging City & Courtyard Gardens Cottage & Informal Garden Patio & Container Plants Rock Garden

How to care

Pruning Tidy old or diseased leaves, or after flowering

Pests May be attacked by slugs, aphids, leaf hoppers and vine weevil

Diseases Susceptible to grey moulds (Botrytis), leaf spot (fungal) and a virus

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