Change the water daily, and give stems a fresh cut to extend the life of the glads. For flower spikes left in the garden, remove the wilted florets to keep the plants looking good. Cut flower stems as they bloom out unless collection of seed is an objective. Development of seed pods can put great strain on corm development. Fall Care Dig and store glad corms each fall.
Corms are ready for digging about six weeks after they have bloomed.
By this time foliage should be yellowing and dying back. If the tops are still healthy, let corms grow to add to corm development, until just before a hard freeze. Once the foliage dies back, dig the corms to prevent disease problems while corms are in the ground. Dig corms when the soil is dry. This will make digging and cleaning corms much easier.