If you are in zone 9, and your soil doesn't deep freeze over winter, you can be reasonably sure that many of the species Gladiolus will carry over and flower from year to year. Many of the florist varieties will, too.

The species tend to spawn prolifically but, if you take that into account when planting, and mark the spot so you don't damge the bulbs in the dormant phase, you should be fine.

If your ground tends to bake over summer then use whatever strategies are locally appropriate to protect bulbs from excess heat. Glads are pretty tough, though.