Bulbs are commonly understood as plant storage devices and here the term bulb is used to cover various forms of dormant plants.

1. Underground plant storage is provided by nature in various forms examples of which include corms for crocus, bulbs for daffoilils, tubers for Dahlia or rhizomes for Lily of the valley.
2. A top performer in summer is often one of the many varieties of Lily. The Asiatic lily can grow in tubs on the patio to 12″ high. Larger double flowered lilys can be over 3′ tall.
3. Dahlia tubers are easy to grow and provide masses of flower from late summer until the first frost. Decorative, pompom, single and cactus Dahlia varieties refer to the petals and flower shape.
4. Begonias are brash flowering corms that are progressively being used as border plants. They need lifting to regrow the following year.
5. Crocosmia is a hardy corm that produces a spray containing many red or orange flowers along its stem.

Asiatic Lily

As a further thought, where would Barry Humphries have been without his famous corm The Gladioli?