The Gladiolus is a perennial flower known for its beautiful, showy flowers. Their flowers grow on tall spikes and open from the bottom and work their way upward creating a long spire of blooms. Although many gardeners grow gladiolus for use as cut flowers, they are also attractive planted in an annual garden or in the back along a border as they grow tall in height. Gladioli have many different colored flowers varying from pink, red, purple, yellow, orange and white. 40 Mixed gladiolus perennial flower bulbs Recommended to plant in full to partial sun Require well-drained soil area Deer-resistant, attracts hummingbirds Suitable for zones 2-10 Grow 24-72xe2x80x9d tall