Although gladioli are often cut and used in flower arrangements, letting the flowers die back naturally ensures that nutrients are returned to the corm, allowing it to bloom again the next season. Cut stalks for indoor use when only two flowers are open – the remaining blooms will open while in the vase.

Will gladiolus come back every year?

Gladioli grow from corms, which are underground storage organs much like bulbs. ... Gladiolus come in a riot of colors and will re-bloom every year. Northern gardeners will need to lift the corms in fall and store them through the cold season to protect the gladiolus from freezing temperatures.

Will gladiolus bloom a second time?

are often cultivated solely for cut flowers in the home during spring and summer. ... While technically not "reblooming," if the corm is large enough to store sufficient energy, your gladioli can produce more than one flower spike each year.