Hesperantha coccinea f. alba

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crimson flag lily (white form)

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Synonyms

Schizostylis alba
Schizostylis coccinea f. alba
Hesperantha coccinea white-flowered

Herbaceous Perennial
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A vigorous, clump-forming perennial that grows from thickened rhizome roots. In autumn it produces white star-shaped flowers above thin, grass-like, semi-evergreen leaves.

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1–2 years
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Neutral or Alkaline

Position

Full sun
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered
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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Iridaceae
Native to GB/Ireland
No
Foliage
Semi evergreen
Habit
Clump forming
Genus
Hesperantha are semi-evergreen, rhizomatous perennials with narrowly sword-shaped, erect leaves and spikes of starry or bowl-shaped flowers from late summer to late autumn
Name Status
Unresolved

How to Grow

Cultivation

Grow in moderately fertile, moist but well drained soil in full sun. Keep roots moist. Shelter from cold, drying winds. Mulch with organic matter in winter.

Propagation

Propagate by seed at 13-16°C (55-61°F) in spring. Propagate by division in spring.

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Low Maintenance
  • Flower borders and beds

Pruning

No pruning required. Remove withered leaves and flower stems by hand.

Pests

Generally pest-free

Diseases

Generally disease-free