• 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

Chaerophyllum hirsutum 'Roseum'

hairy chervil 'Roseum'

  • Other common names hairy chervil 'Roseum'

  • Family Apiaceae

  • Genus Chaerophyllum are tap-rooted perennials with fern-like, finely divided leaves and umbels of small white or pink flowers

  • Details 'Roseum' is a perennial with attractively dissected, aromatic foliage and umbels of lilac-pink flowers in late spring or early summer

Characteristics

  • Foliage Deciduous

  • Habit Columnar/Upright

  • 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)

    H7

Colour

Sunlight

  • Full Sun

  • Partial Shade

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

  • Exposure Exposed or Sheltered

Soil

  • Loam

    Loam

  • Chalk

    Chalk

  • MoistureMoist but well-drained, Poorly-drained

  • SoilLoam, Chalk

  • 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 a fertile, moist soil in sun or partial shade

Propagation Propagate by seed sown in pots in a cold frame as soon as ripe or in early spring

Suggested planting locations and garden types Low Maintenance Wall-side Borders Cottage & Informal Garden

How to care

Pruning Cut down after flowering

Pests Can get slugs, snails and aphids

Diseases May suffer from powdery mildews

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