Gladioli are summer-blooming corm plants. ... Home gardeners who plant groups of corms about every two weeks will be rewarded with continuous blooms all summer. Alternatively, plant early, mid- and late-blooming varieties at the same time. Gladioli take about 12 weeks to flower from the time of planting.
How do you keep gladiolus blooming in the summer?
How to Grow Gladiolus
- Put a 2- to 4-inch layer of mulch around your gladioli to keep your soil moist and help prevent weeds.
- If you get less than 1 inch of rain a week, water your plants regularly throughout the summer. ...
- Remove the faded/dead flowers to ensure continuous blooms.
How long do gladiolus stay in bloom?
Gladiolus flowers last about a week but sometimes persist on the stalk for up to two weeks. They bloom consecutively with the lower buds opening first and the upper ones finishing several days later.
