15x Gladiolus — Mix 'City Garden' Purple-Red-WhiteGrow it yourself! Put the colourful gladiolus (Gladiolus glamini) in your garden, the simple way! This handy DIY set includes a square pot, soil, the bulbs and planting instructions. It's an easy way to make a start in the garden! The gladioli should be planted from March to May in full sun or partial shade. They will flower from July to August. Tip: cut the gladiolus from its stem and place it indoors in an attractive vase.