• 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

Valeriana officinalis

common valerian

  • Other common names common valerian
    all-heal

    capon's tail
    cat's valerian
    cut-finger
    cut-heal
    garden heliotrope
    hardy heliotrope
    herb bennet
    Hercules' all-heal
    medicinal valerian
    phu
    St George's herb
    set-wall
    set-well
    summer heliotrope
    Vandal root

    see more
  • Family Caprifoliaceae

  • Genus Valeriana can be annuals, herbaceous perennials or evergreen shrubs, with simple or pinnately lobed leaves and terminal sprays of small, white, pink or yellow flowers

  • Details V. officinalis is an upright herbaceous perennial to 1.5m tall, with curiously scented pinnate leaves and rounded clusters of small pink or white flowers in summer

  • Plant range Eurasia

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Leaf

  • 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

  • Partial Shade

  • Aspect South-facing or West-facing

  • Exposure Exposed or Sheltered

Soil

  • Sand

    Sand

  • Clay

    Clay

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureMoist but well-drained

  • SoilSand, Clay, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 1-1.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in any moist soil in full sun or dappled shade

Propagation Propagate by seed in containers in the open, or take basal cuttings (see softwood cuttings) in spring. Can also be propagated by division in spring or autumn

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

How to care

Pruning None pruning required, other than cutting back to ground level in autumn

Pests Generally trouble free

Diseases Generally trouble free

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