Light: Bright filtered shade or gentle early-morning sun; protect from midday and afternoon sun in Phoenix.
Water: Keep soil evenly moist but never soggy during active growth and flowering. Reduce watering as foliage yellows; keep dormant rhizomes mostly dry.
Soil: Rich, loose, well-drained soil amended with compost. In containers, use a quality potting mix with added perlite; avoid heavy clay and standing water.
Mature size: Usually 1–2 feet tall and 1–1.5 feet wide; varies by cultivar.
Bloom: Typically spring to early summer, depending on cultivar and planting time. Extreme heat can shorten flowering and trigger dormancy.
Evergreen / deciduous: Deciduous; yellow-flowered hybrids have a dormant period and may die back during Phoenix’s hottest months.
Growth rate: Moderate to fast during active growth; dormant during unfavorable conditions.