It is recommended to cut down gladiolus foliage after they bloom. This is an important step in maintaining the health of the corm, which is the underground part of the plant that stores energy for future growth. By removing the foliage, you are allowing the plant to redirect its energy towards the development of a strong and healthy corm.
To cut down the gladiolus foliage, start by using a sharp and clean pair of pruning shears or scissors. Cut the leaves and stem down to about 1 or 2 inches (2.5-5cm) above the neck of the corm. The neck refers to the point where the foliage emerges from the corm. By leaving a small portion of the foliage, you are allowing the plant to continue photosynthesizing and storing energy for a short period before going dormant.
Once you have cut down the foliage, you have two options depending on your gardening practices. If you plan to leave the gladiolus corms in the ground over winter, it is advisable to mulch the area with bark chippings or any other organic mulch. This will help protect the corms from extreme temperatures and provide some insulation during the colder months.
On the other hand, if you prefer to lift and store the gladiolus corms, you can do so after cutting down the foliage. To lift the corms, carefully dig around the base of the plant, taking care not to damage the corms. Gently lift them out of the ground and shake off any excess soil. It is important to handle the corms with care as they can be easily bruised or damaged.
After lifting the corms, allow them to dry for a few days in a well-ventilated area. This will help them cure and prepare for storage. Once dry, gently remove any remaining soil or debris from the corms. Check for any signs of disease or damage, and discard any corms that appear unhealthy.
To store the gladiolus corms, place them in a cool, dry, and dark location. Many gardeners use paper bags or mesh bags to store the corms, as they allow for air circulation and help prevent rotting. It is important to check the corms regularly during storage to ensure they remain healthy and free from any signs of disease or rot.
By following these steps, you can ensure the long-term health and success of your gladiolus bulbs. Cutting down the foliage after flowering and properly storing the corms will help them survive the winter and produce beautiful blooms in the following growing season.
