There are 10 species in the Agapanthus genus, and most of them are commonly known as lily-of-the-Nile. Out of its clump of strap-like foliage juts a 2-foot flower stalk that, depending on species, blooms in shades of purple, pink or white. Whether the plant is evergreen or deciduous is also species-dependent, according to the experts at the Pacific Bulb Society. Species from areas with little to no rain in winter tend to be deciduous, while those from areas with rain throughout the year are evergreen. Agapanthus is easy to care for and requires little pruning.
Cut back the agapanthus in spring. Remove dead leaves and any stems from the previous season.
Deadhead the agapanthus throughout the flowering season to keep the plant from producing seed. Use your gardening shears to snip the flower stem into the foliage.
Cut back the agapanthus to within 6 inches of the soil if you live in an area with harsh winters. Dig up the corm, allow it to dry out completely and plant it in a pot of standard potting soil. Store the agapanthus corm in a dark area where the temperature never dips below 35 degrees Fahrenheit and never rises above 45 degrees. Bring the pot out of storage in early spring.