How to grow gladioli
Gladioli are easy to grow. Plant the gladioli bulbs in spring in a sunny spot with well-drained soil. Cultivation is simple - just be sure to water and feed your plants regularly for the best results; and don’t let nearby plants swamp your gladioli - they like all the light they can get! Deadhead plants after flowering to help them conserve their energy for next year.
Corm harvesting and storage
Most gladioli won’t survive the winter outdoors, so once the foliage has died back in autumn, it’s time to lift them and bring them inside. Lift the plants and allow them to dry thoroughly in a shed or greenhouse. Then remove all the dead leaves and stems. Brush away any mud and store them somewhere frost-free and dry (a garage is ideal) until mid-spring, when they can be planted back in the garden.