Light: Full sun to partial shade; afternoon shade is helpful in Phoenix’s hottest exposures. Flowers best with several hours of direct sun.
Water: Water regularly during establishment. Once established, water deeply when the upper few inches of soil dry; moderate summer irrigation supports fuller growth and more flowers. Tolerates brief drought.
Soil: Adaptable to sandy, loamy, or clay soils, including alkaline soils; well-drained soil is preferred.
Mature size: Typically 3–4 feet tall and 2–3 feet wide; colonies can spread wider through underground stems.
Bloom: Late spring through fall, potentially longer in warm, frost-protected locations.
Evergreen / deciduous: Evergreen in frost-free conditions; semi-evergreen or dies back after freezing temperatures in Zone 9b, usually regrowing from the roots.
Growth rate: Fast.