About
Prins Claus' is a cormous perennial to 70cm tall with sword-shaped leaves. Pure white flowers with cerise-pink markings on the lower petals are borne on spikes in the 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 height2-5 years
Suggested usesCity and courtyard gardens, 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
CultivationPlant 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
PruningNo pruning required
PropagationPropagate 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