• 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

Salvia verticillata 'Purple Rain'

whorled clary 'Purple Rain'

  • Other common names whorled clary 'Purple Rain'

  • Synonyms Salvia 'Purple Rain'

  • Family Lamiaceae

  • Genus Salvia can be annuals, biennials, herbaceous or evergreen perennials, or shrubs. They have paired, simple or pinnately lobed, often aromatic leaves and 2-lipped flowers in whorls, forming simple or branched spikes or racemes

  • Details 'Purple Rain' is an upright perennial with lyre-shaped leaves and small, reddish-purple flowers borne in long, dense, interrupted spikes on reddish stems in 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

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • 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 well-drained soil and full sun with shelter from cold, drying winds

Propagation Take basal stem cuttings in late spring; stem-tip cuttings in late summer or in early autumn and propagate by division in spring

Suggested planting locations and garden types Flower borders and beds Garden Edging Wall-side Borders City & Courtyard Gardens Coastal Cottage & Informal Garden Patio & Container Plants

How to care

Pruning No pruning required; cut down flower spikes when finished

Pests Slugs and snails, aphids, capsid bug, leafhoppers and rosemary beetle may damage young growth

Diseases Foot and root rots, powdery mildew and Verticillium wilt can be problematic

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