Follow planting depth recommendations given on packaging. Lilies that have both stem and basal roots usually are planted at least 5 inches deep. After the first frost, dig dahlias carefully with a fork and lift. Allow tubers to dry, then store. Dig and lift gladiolus in late fall and store.
Caladiums begin to fade as the growing season ends.
Gradually reduce watering and allow to go dormant. Begonias are dug and stored after frost has killed above-ground foliage. These are popular plants with many gardeners, despite the extra care they must be given. Irrigate summer-flowering bulbs during dry weather. Keep water off foliage and blooms.