White Ghost Cactus (Euphorbia Lactea)
Hardiness Level: Euphorbia lactea is best suited for USDA Hardiness Zones 9-11. It can tolerate temperatures as low as 30°F (-1°C) for short periods but thrives in warmer conditions. This plant prefers full sun to partial shade and requires well-draining soil to prevent root rot. It’s essential to water sparingly, allowing the soil to dry out between waterings, as overwatering can be detrimental.