Care: Xanthosoma 'Variegatum Monstrosum' Care: Prefers bright, indirect light. Water when top 1-2 inches of soil are dry. Use well-draining, organic-rich soil. Thrives in high humidity; consider a humidifier or pebble tray. Ideal temperature: 65°F-85°F. Fertilize every 4-6 weeks in growing season. Prune yellow leaves. Repot every 2-3 years.