The cutting of flowers does not inhibit the development of the new corm as long as leaves are not removed with the flower. On the other hand, seed is produced at the expense of corm production. As soon as the tops die down, dig the corms. Remove the withered corms and tops and store the new corms in a frost-free location over winter. Avoid high temperatures and low humidity.
Lilies are available in several types and in colors ranging from white and yellow to deep red.
While lilies are perennial, not all of them endure Colorado winters. They may be replanted in the spring. The plants remaining in the Garden should be mulched to help them through the winter. Tuberous begonias come in colors from white through yellow and orange to deep red. Their flowers are primarily double.