25x Large-flowered gladiolus - MixOver the top colour! Abundant flowers grow on the stems of the gladioli. This mix contains all kinds of different colours of large flowered gladioli. The gladiolus also attracts butterflies, adding extra charm to the garden! Plant the tubers in the spring. The flowers bloom in the summer. Space the tubers out when planting. The distance between plants is three times the width of the tuber. Plant the tuber the depth of three times the tuber's height.