Generations of gardeners have loved gladioluses for their dramatic beauty. Often growing up to 5 ft. tall, gladioli bloom during the summer months and are available in a wide array of colors. Their flowers bloom on straight stalks—perfect for cut-flower displays. In the garden, gladioluses look most impressive when planted in groups. Gladioli are tender bulbs, and in most of the country can be grown as annuals or lifted in the fall. They grow best in sandy, well-drained soil and in full sun. Gladiolus bulbs are planted in the spring after the danger of frost has passed. Shop our selection of gladiolus bulbs for sale today.