Culture

Annual. Easily grown in average, evenly moist, well-drained soils in full sun. Appreciates some light afternoon shade in hot summer climates such as St. Louis. Start seed indoors 6-8 weeks before last frost date or purchase plants in cell/six packs from local nurseries. Set plants out after last frost date. Plant taller varieties deep: strip off a few of the lower stem leaves and set plants below the remaining leaf scars so as to minimize the need for stem support. pinch young plants to promote bushy growth. Promptly deadhead spent flowers. Site tall varieties in locations sheltered from strong winds and heavy rains.