The Bicolor Iris (Dietes bicolor), the African Iris or Fortnight Lily, is a perennial evergreen plant from the Iridaceae family. It is admired for its elegant, sword-like green foliage and striking flowers. The blooms are typically pale yellow or cream with dark spots and orange accents, creating a beautiful contrast. Each flower lasts only a day, but the plant produces new blooms every two weeks during its flowering season, hence the nickname “Fortnight Lily.”
Growing and Maintaining Bicolor Iris:
- Light: Thrives in full sun to partial shade. More sunlight encourages abundant flowering.
- Soil: Prefers well-draining soil, though it can tolerate a range of soil types, including sandy or loamy soils. A slightly acidic to neutral pH is ideal.
- Watering: Requires moderate watering. Keep the soil moist but not waterlogged. It can tolerate short periods of standing water.
- Temperature: Hardy in USDA zones 8b-11. It can withstand mild frost but thrives in warmer climates.
- Fertilizer: To promote healthy growth, apply a balanced fertilizer in early spring and again after the flowering period.
- Pruning: Remove spent flower stalks and dead leaves to maintain a tidy appearance and encourage new growth.
- Propagation: Can be propagated by dividing spring clumps or planting seeds.
Once established, this low-maintenance plant is drought-tolerant and attracts pollinators such as bees and butterflies. It’s an excellent choice for borders, rock gardens, or as an accent plant near pools and patios. With proper care, the Bicolor Iris can add a touch of elegance to any garden.