The Fortnight lily Dietes bicolor (variously known as African iris or bicolor) gets its name from its recurring two-week flowering cycle during spring and into summer. This is a narrow-leaved species that grows to 30 in. tall with medium green leaves that quickly grows to form dense clumps in gardens and landscapes. Pale yellow flowers to 2 in. in dia. have broad overlapping petals with a maroon spot at their base.
This South African species provides fine foliage texture and attractive yellow flowering for accent character among other foliage plants. It is quite robust and should be divided every 3-4 years to maintain a suitable size and character. It is a good plant for pots, parkways, around bioswales, and feature elements in raised planters.
Plant Type: Perennial Foliage Character: Evergreen Habit: Dense, Clumping Growth Rate: Fast Height: 30 in. Width: 3 ft. - 6 ft. Water Needs: Moderate 4 Foliage Color: Medium green Flower Color: Yellow Flower Season: Summer, Spring, Fall Soil Adaptations: Well-draining soil, Loam, Clay Exposure Adaptations: Morning sun, Frost, All day sun, Partial sun Function: Foundations, Flowering accent plant, Container plant, Borders