This grower is sure of this plant identification.
These are Bulbs I've lifted this summer after they have flowered.
Gladiolus communis var. byzantinus. Dense spikes of deep pink-red, funnel-shaped flowers appear in late spring. Has a fan of sword-shaped, basal, mid-green leaves.
They are frost to half hardy and will need a sunny and fertile, well drained site. You will need to plant the corms 10-15cm deep and the same distance apart in spring, water well in summer and support the tall cultivars with canes. Cormlets, removed after lifting should be stored in frost-free conditions and then be planted out 5cms deep in spring; lift in winter as for mature corms. They will flower in 1-2 years.
Is suitable for cutting or for planting in mixed borders; most hybrids are also good for exhibition.
Italics = data drawn from parent genus or speciesView Full Plant Finder Record