Bicolor Iris – Desert Horizon Nursery

Bicolor Iris

Dietes bicolor
Categories:
Perennials  ·  
Perennials
Light
Full sun
Water
Moderate water in Phoenix; irrigate deeply, allowing the upper few inches of soil to dry between waterings. Water more frequently during extreme summer heat and less in winter.
Size
2-4 ft tall × 2-3 ft wide
Habit
Perennial clump
Toxicity
Not Established
Description
A clumping, rhizomatous perennial with narrow, arching, sword-shaped leaves and pale yellow, iris-like flowers marked with dark spots.
Bloom Time
Spring through fall; intermittent bloom year-round in mild climates.
Deciduous / Evergreen
Evergreen
Special Features
Low Maintenance
Growth Rate
Moderate
Growth Habit
Perennial clump
Mature Size
2-4 ft tall × 2-3 ft wide
Flower Color
Yellow with dark brown markings
Foliage Color
Medium green
Landscape Use
Border / Bed, Container / Patio, Desert / Xeriscape, Foundation Planting, Poolside
Garden Style
Container / Patio, Desert / Xeriscape, Hedge / Formal
Soil
Amended / Rich, Sandy / Rocky, Well-Drained
Companion Plants
Dwarf agapanthus, Foxtail fern, Society garlic
Not Established
Not established — verify
Care Instructions

Light: Morning sun with afternoon shade is best in Phoenix; avoid reflected heat and intense western exposure.

Water: Moderate water in Phoenix; irrigate deeply, allowing the upper few inches of soil to dry between waterings. Water more frequently during extreme summer heat and less in winter.

Soil: Well-drained soil enriched with compost; tolerates sandy or clay soils provided drainage is adequate.

Mature size: 2–3 feet tall and 3–4 feet wide; flower stalks may rise above the foliage.

Bloom: Repeated flushes from spring through fall, strongest in spring and early summer; extreme heat may reduce flowering.

Evergreen / deciduous: Evergreen in mild winters; hard freezes can brown or damage foliage.

Growth rate: Moderate.