Since gladioli are very sensitive to cold, they must be overwintered in a frost-free place in the basement, garage or in the house. So that the tubers sprout vigorously again next year, it is important to professionally cut them back.
Before digging up, the gladioli are cut back
After flowering
When the long flowering shoot has faded, only the faded part is cut off at first. Leave all foliage on the gladiolus bulb. This is necessary so that the onion continues to grow and stores sufficient nutrients for the next growing season.
Cut back in the fall
Before you dig up the gladioli, cut back the yellowed foliage to about four inches.
tips
If the leaves turn yellow and dry up as a result, you can cut them back in summer. The yellow color of the leaves indicates that the tuber has absorbed enough nutrients and is preparing for hibernation.