Perennial: Drought tolerant. Deer resistant. Evergreen. Excellent woodland, container, rock garden & border plant. Long lived plant, free from pests & diseases. Sap may cause irritation, so wear gloves if in doubt. Blooms: spring-summer. Bloom color: yellow-green. Ht: 2'. W: 2'. Exposure: sun. Water: moderate. USDA Z7.