Summer flowering “bulbs” typically do not survive the winter if left in the ground. Though
commonly lumped into the category of “bulbs” canna and calla lilies are actually grown
from rhizomes. Caladiums and tuberous begonias are tubers. Gladiolas grow from
corms and dahlias are tuberous rooted plants. Each of these plants is sensitive to cold
weather and usually don’t survive if left in the ground through winter.
After the foliage has turned brown from frost, dig up the entire plant including the root structure. Store them in a protected area for about one week. Once dry, clean the soil off the roots and package them individually in a soilless mix. Store through winter in
an area that remains as close as possible to 40 degrees F. Caladiums should be stored at 50-60 degrees F.
