About
A cormous perennial to 90cm tall producing a fan of narrow, sword-shaped leaves in spring. Up to three spikes of orange-red flowers, each petaledged with a silvery-white line, are borne in summer.
About the genus
Gladiolus are cormous perennials with fans of sword-shaped or linear leaves and spikes of funnel-shaped flowers
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureWell-drained
AspectSouth-facing
ExposureSheltered
UK hardinessH4
Plant details
Plant typeBulbs
HabitColumnar upright
FoliageDeciduous
Height0.5-1 metres
Spread0-0.1 metre
Time to full height1-2 years
Suggested usesCity and courtyard gardens, Coastal, Cottage and informal garden, Patio and container plants
ToxicityOrnamental bulbs, not to be eaten. Wear gloves and other protective equipment when handling. Pets: Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Care notes
CultivationGrow in fertile, well-drained soil in full sun. Plant corms 10-16cm deep in spring. If the soil is not perfectly-drained, plant the corms on a bed of sand. Provide a winter mulch in cold areas
PruningRemove spent flower stems and allow foliage to die down naturally
PropagationPropagte by separating cormlets when dormant
Pest resistanceMay be susceptible to gladiolus thrip, aphids and slugs
Disease resistanceMay be susceptible to gladiolus corm rot, grey moulds (Botrytis), Fusarium bulb rot, gladiolus core rot, gladiolus dry rot, gladiolus scab and neck rot, fungal leaf spot, and virus diseases