Light: Full sun; light afternoon shade can reduce scorching in Phoenix, especially near heat-reflecting walls. Acclimate nursery-grown plants gradually.
Water: Low water once established. Water deeply but infrequently during prolonged summer drought, letting soil dry thoroughly between waterings. Keep nearly dry in winter.
Soil: Very well-drained sandy, gravelly, or rocky soil; tolerates alkaline soil. Plant on a raised mound where drainage is poor.
Mature size: Approximately 6–8 feet tall and 10–12 feet wide, sometimes larger; flowering stalk can reach 25–40 feet.
Bloom: Blooms once after several decades, often 20–40 years or longer. The flowering rosette dies afterward; any offsets survive.
Evergreen / deciduous: Evergreen.
Growth rate: Slow to moderate; faster with warmth and occasional deep irrigation.