African iris is a robust, grass-like plant with evergreen foliage that works well as a groundcover or accent plant in warm climates. It produces delicate, bright white flowers throughout spring and fall with only short periods of rest in between, earning it the nickname “fortnight flower.” Even in tough landscaping areas, this plant from South Africa thrives and adds color and texture. To get the best blooms, plant African iris in a location with at least six hours of full sun and well-draining soil with a slightly acidic pH. Mass plantings work well to make entryways look inviting or mask unappealing spots. Plant after the danger of spring frost has passed and keep the rhizomes at least a foot apart. Water well until the plant is established. African iris requires full sun for optimal growth and blooms, prefers loamy soil with good drainage, and is not winter-hardy below zone 8. It does not need much fertilizer- a light application of balanced complete granular fertilizer twice a year is sufficient. Prune the seed pods as they begin to form but leave the flower stems on the plant for a continuous bloom. Propagate African iris by dividing the clumps in spring or fall and replanting healthy rhizomes at the same depth as the original plant. There are several types of African iris, including Dietes bicolor, Dietes ‘Lemon Drops,’ and Dietes bicolor ‘Variegata.’