Add a rainbow of colors to your garden with the Mixed Growers Special Gladiolus! Plant these bulbs in spring or summer when the danger of frost has passed. Each bulb will produce one large flower stalk---therefore you will have at least 100 flowers this summer. Gladiolus bloom 60-90 days after planting. Stagger your plantings over the course of weeks for a parade of blooms in mid-to-late summer. Take advantage of this limited-time deal for these beautiful gladiolus bulbs!