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Gladiolus flanaganii

suicide lily

G. flanaganii is a cormous perennial, to about 30cm tall, with upright, sword-shaped leaves and arching sprays of funnel-shaped flowers in mid- to late summer. These may be bright red, or paler red with darker markings and narrow white streaks on the lower petals

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0–0.1 metre
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Red Green
Autumn
Winter
Position
  • Full sun
Aspect

West–facing or South–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Iridaceae
Native to the UK
No
Foliage
Deciduous
Habit
Columnar upright
Genus

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

Name status

Correct

Plant range
Central & SE South Africa

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How to grow

Cultivation

Grow in very well-drained soil, or pots of free-draining compost, in a sunny, sheltered position

Propagation

Propagate by seed or by separating cormlets when dormant

Suggested planting locations and garden types
  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants
  • Cut flowers
  • Flower borders and beds
Pruning

No pruning required

Pests

Susceptible to thrips, aphids and slugs

Diseases

Susceptible to grey moulds and gladiolus corm rot

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