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Gladiolus communis subsp. byzantinus AGM

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© Mike L. Grant 2000

Characteristics

Plant type

Bulb

Habit

Columnar/Upright

Resilience

Hardiness

H5 (hardy - cold winter)

Colour

Flower

Purple and Red in Spring and Summer

Foliage

Green in Spring and Summer

Size

Ultimate height

0.5-1 metres

Ultimate spread

0-0.1 metre

Time to ultimate height

2-5 years


Preferred common name

Byzantine gladiolus

Family

Iridaceae


Gladiolus are cormous perennials with fans of sword-shaped or linear leaves and spikes of funnel-shaped flowers

G. communis subsp. byzantinus is a perennial to 90cm, growing from a corm, with erect sword-shaped leaves nearly as tall as the flowering stems. Deep red-purple, funnel-shaped flowers 5cm in width, are borne in erect spikes from late spring

Synonym(s)

  • Gladiolus byzantinus
  • Gladiolus nanus 'Byzantinus'

How to grow

Sunlight

  • Full sun

Aspect

  • South-facing, West-facing or East-facing
  • Sheltered

Cultivation

Plant 10 to 16cm deep on a bed of sharp sand in fertile, well-drained soil. Lift when foliage dies back, discard old corms and store new corms in a dry frost-free place until planting in the spring. In milder areas a thick dry winter mulch may suffice

Soil

  • Well-drained or Moist but well-drained
  • Acid, Alkaline or Neutral
  • Loam, Chalk or Sand

Propagation

Propagate by separating cormlets when dormant

Suggested planting locations and garden types

Cottage/Informal Garden, Flower borders and beds, Wildflower meadow or Cut Flowers


How to care

Pruning

No pruning required

Pests

Susceptible to thrips, aphids and slugs

Diseases

Susceptible to grey moulds and gladiolus corm rot