Perennial Herb: Deer resistant. Sundiascia is a completely new form of diascia that offers a unique, upright habit & stunning show of color. Tall stems display 3" flower spikes boldly. More heat tolerant. Self-cleaning, best when kept slightly on the dry side. Good for pots or borders. Attracts bees and butterflies. Bloom time: spring-summer. Bloom color: white. Height: 12-15". Width: 18-20". Exposure: sun. Water: moderate.