Growing Heliotropium (Heliotrope)
Latin Name Pronunciation: hee-lee-oh-tro'pee-um
Grow in full sun (afternoon shade is recommended in Zone 10 and the warmest parts of Zone 9 in the West) and evenly moist soil. Plants in dry soil are susceptible to powdery mildew, an aptly named fungal disease. Remove flower clusters as they turn brown to encourage the formation of new ones. Hardy to Zone 9 (20°F). In cold-winter climates, bring plants indoors before frost and place them in an east or west-facing window in a cool room. Water just enough to keep plants from drying out completely. Set back outdoors after the danger of frost has passed in spring.