About
A striking gladiolus cultivar, with erect, fan-shaped foliage and strong, unbranched flower spikes. An imposing raceme of broad-petalled, ruffled flowers unfurls from bottom to top in midsummer. 'Spontaneous Combustion' makes a bold statement in borders.
About the genus
Gladiolus are cormous perennials with fans of sword-shaped or linear leaves and spikes of funnel-shaped flowers
Plant details
Suggested usesBorders, cutting gardens, containers. Outstanding as cut flowers.
Care notes
CultivationPlant corms 10-15cm deep in fertile, well-drained soil in full sun after last frost. Stake tall varieties.
PruningCut flower spikes when lowest buds open. Lift corms after foliage yellows in autumn; store frost-free.
PropagationSeparate cormlets when lifting in autumn. Grow on for 2-3 years to flowering size.
Pest resistanceThrips can damage flowers and foliage. Western flower thrips especially troublesome.
Disease resistanceBotrytis, fusarium corm rot, and gladiolus scab. Discard affected corms. Rotate planting sites.