Gladiolus ‘callianthus’. This small-flowered Gladiolus (Abyssinian gladiolus) is a real summer bloomer. These special gladiolus-like flowers reach a height of 80 cm and are also beautiful cut flowers. The Abyssinian gladiolus flowers profusely and should not be missing in your summer flower garden. You can plant the tubers about 7-10 cm deep in the spring. First loosen the soil well and sprinkle a layer of sharp sand at the bottom of the planting hole. This allows rainwater to drain well under the tubers. Space the tubers about 10-12 cm apart. Add some good potting soil when planting. Mix heavy (clay) soil with sharp sand before planting. This large-flowered gladiolus likes to grow in a warm sunny spot. This Abyssinian gladiolus has a beautiful white colour and is therefore easy to combine. You can make special combinations with it in the border with perennials, dahlias and other summer flowers.