A basement or crawl space works well. Check on them periodically to ensure they are not drying out. If needed, add a little moisture to keep the tubers plump. In the spring, divide the clumps, making sure to include an eye or bud that is attached to each tuber close to where they were joined in the clump.
· Gladiolus - Corms can be dug about six weeks after they finish flowering or when the tops start to turn slightly yellow. After digging, wash off the soil and cut the tops to within an inch of the corm.
Leave the corms outdoors in the sun for a few days and then move them to a light, airy place. Spread them out and allow them to cure for two to three weeks.
"After they are dry, remove the old corm located under the new corm by twisting it off," he said. "Do not remove the papery husk from the corm. Place the corms in an open flat or in onion bags or nylon stockings. Store at 40 to 50 degrees in a well-ventilated area. The small cormels (baby gladiolus corms) can also be saved for future planting. Keep in mind; however, it may take two to three seasons before they will produce blooming-size corms."