Agave lophantha 'Quadricolor'
Light: Morning sun with afternoon shade is ideal in Phoenix; protect from intense reflected heat and harsh summer afternoon sun.
Water: Low water once established; water deeply, then let soil dry thoroughly. Provide occasional supplemental water during prolonged summer heat; water sparingly in winter.
Soil: Very well-drained, sandy or gravelly soil; tolerates alkaline soil. Use a fast-draining cactus mix in containers.
Mature size: About 1–2 feet tall and 2–3 feet wide per rosette; offsetting colonies spread wider.
Bloom: Each rosette blooms once at maturity, usually after many years, then dies; offsets continue growing.
Evergreen / deciduous: Evergreen.
Growth rate: Slow to moderate, depending on warmth, moisture, and growing conditions.