Gladiolus Flower Care. The corms will rot if the soil is too heavy and wet. Put a 2- to 4-inch layer of mulch around your gladioli to keep your soil moist and help prevent weeds.
The plants grow from a tender perennial corm that collects and stores the energy necessary for the following years growth making it necessary to properly care for the gladiolus after blooming if you want it to flower again the next year. Gladiolus corms will flower in part shade but the colors will not be as vivid as when planted in full sun and the plant wont grow quite as well. Gladiolus are only completely hardy in USDA plant hardiness zones 8 to 11.
When first frost strikes you can dig your glad bulbs for winter storage.
Gladiolus even do well outdoors in containers resting in direct sunlight. Dec 15 2020 If youre growing gladiolus plants mainly for cut flowers plant them in rows. Postharvest Care and. Try growing them in a flower bed cut-flower garden or border that receives lots of sunshine.