• 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

Allium schoenoprasum f. albiflorum

white-flowered chives

white-flowered chives

© RHS

  • Other common names white-flowered chives

  • Synonyms Allium schoenoprasum 'Album'
    Allium schoenoprasum white-flowered

  • Family Alliaceae

  • Genus Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem

  • Details A. schoenoprasum f. albiflorum is a clump-forming, bulbous herbaceous perennial, up to 30cm high, with edible, hollow, cylindrical, grass-like leaves, and spherical, pure white flowerheads, 1.5cm across, in early summer

Characteristics

  • Foliage Deciduous

  • Habit Clump-forming

  • Fragrance Leaf

  • Toxicity

  • 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

  • Partial Shade

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

  • Exposure Sheltered or Exposed

Soil

  • Loam

    Loam

  • Chalk

    Chalk

  • Clay

    Clay

  • Sand

    Sand

  • MoistureMoist but well-drained

  • SoilLoam, Chalk, Clay, Sand

  • pHAlkaline, Neutral, Acid

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow in full sun or partial shade; for edible leaves, grow in moist but well-drained medium soil, while for flowers, grow in lighter and drier soil; for more advice see Allium cultivation

Propagation Propagate by seed (may not come true if non-white chives are growing nearby) or by division during spring or autumn into groups of 5 or 6 plants, and replant at spacings of 20-30cm

Suggested planting locations and garden types Flower borders and beds Garden Edging Cut Flowers Underplanting of Roses and Shrubs Low Maintenance Wildlife Gardens Cottage & Informal Garden City & Courtyard Gardens Patio & Container Plants

How to care

Pruning No pruning required, except cutting the leaves for eating, preferably with scissors, and deadheading

Pests May be affected by slugs and snails

Diseases May be affected by onion white rot and downy mildews

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