• 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

Zephyranthes candida

Peruvian swamp lily

Peruvian swamp lily

© RHS

  • Other common names Peruvian swamp lily
    sea onion

    summer crocus
    white zephyr lily

    see more
  • Synonyms Argyropsis candida

  • Family Amaryllidaceae

  • Genus Zephyranthes can be deciduous or evergreen bulbous perennials, with linear leaves and funnel-shaped or crocus-like flowers in spring, summer or autumn

  • Details Z. candida is a deciduous bulbous perennial up to 20cm in height, with linear basal leaves and goblet-shaped white flowers 4cm across, appearing in succession in summer and early autumn

  • Plant range South America

Characteristics

  • Foliage Deciduous

  • Habit Tufted

  • 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)

    H3

Colour

Sunlight

  • Full Sun

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

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • Chalk

    Chalk

  • Sand

    Sand

  • MoistureWell-drained

  • SoilLoam, Chalk, Sand

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0-0.1 metre

  • Time to ultimate height 2-5 years

How to grow

Cultivation Plant 10cm deep in any moderately fertile, moist but well-drained soil. Protect from winter wet

Propagation Propagate by seed, sown with moderate heat as soon as ripe. Separate offsets in spring

Suggested planting locations and garden types Rock Garden Gravel Garden

How to care

Pruning No pruning required

Pests Generally pest free

Diseases Generally disease free

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