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Gladiolus bulbs, also known as corms, are a popular choice for gardeners who enjoy vibrant summer blooms. Proper storage after harvest is essential to ensure healthy growth in the following season. This guide provides step-by-step instructions on how to store gladiolus bulbs effectively.
Harvesting Gladiolus Bulbs
Timing is crucial for harvesting gladiolus bulbs. Wait until the foliage has turned yellow or brown, which indicates that the corms have matured. Carefully dig around the plant with a garden fork or trowel, being cautious not to damage the bulbs. Gently lift the corms from the soil and shake off excess dirt.
Cleaning and Preparing the Bulbs
After harvesting, clean the bulbs by removing any remaining soil with a soft brush or cloth. Inspect each corm for signs of disease or damage. Discard any that are soft, moldy, or show signs of rot. Allow healthy bulbs to dry in a warm, well-ventilated area for several days.
Drying the Gladiolus Bulbs
Proper drying is essential to prevent mold and rot during storage. Lay the bulbs out in a single layer on a screen or mesh tray. Keep them in a dry, dark, and well-ventilated space for about two to three weeks. Ensure the temperature remains between 65-75°F (18-24°C).
Storing the Bulbs
Once the bulbs are thoroughly dry, store them in a cool, dark, and dry location. Use mesh bags, paper bags, or cardboard boxes with ventilation holes to prevent moisture buildup. Label each bag with the planting date and variety for easy identification.
Tips for Successful Storage
- Maintain a consistent temperature of around 50-60°F (10-15°C).
- Keep humidity low to prevent mold growth.
- Check stored bulbs periodically for signs of rot or sprouting.
- Discard any bulbs showing signs of deterioration.
Replanting Gladiolus Bulbs
In spring, when the danger of frost has passed, replant the stored bulbs in well-drained soil. Plant them about 4-6 inches deep and 6-8 inches apart. Water thoroughly after planting and provide full sun for optimal growth and flowering.