Cutting off the old blooms, if any, so that the new growth has room to grow. Feed your gladiolus with a liquid fertilizer. Feeding your gladiolus with the liquid fertilizer is important to help it absorb it faster in order to bloom at the right time. Start your new gladiolus plants in a greenhouse or other protected environment.
If you notice your gladiolus not blooming, it is important to pause and check what you are doing wrong. It is also possible that the flower has not developed yet or the stamens have not matured. The most likely reason for not flowering is that the plant is stressed.