Perennial: Drought tolerant. The new Vanessa series is bred specifically for mildew resistance. Plants flower early and keep their color all season long. Their mounded habit is best for pots, beds, window boxes and baskets. Attracts butterflies. Blooms: spring-fall. Bloom color: white. Size: 12-18" x 18-24". Exposure: sun. Water: moderate/dry. USDA Z8.