Do I cut gladioli back after the flowers finish?

[EvilDoctorBallerinaDuckKeidis]

Or just leave them, or cut them back later? 😁

[Trethew]

Cut off the flowering stem so it can't make seeds, and leave the leaves until they have died then clear them away

[EvilDoctorBallerinaDuckKeidis]

Thanks so much. 😆

[yorkshireyummymummy]

Do you have to leave them until the leaves have died off? They look bloody awful. Also, mine ( new bulbs) didn't flower. Lots of huge lovely tall leaves, no flowers. What did I do wrong? Does anybody know please?