Start at least 6-8 weeks before last frost date. Sow seed on surface; provide light and warmth of 21-24°C (70-75°F). Seed should germinate in 2 weeks. Plant transplants outside 2 weeks after last frost, space 6-8 inches apart in part shade. Can tolerate full sun in cool areas. Plants like moist, but well-drained rich soil. Mulch to ensure that plants do not dry out. Pinch back shoots when plants are 3 inches high to encourage bushiness. Deadhead regularly. Torenia can be potted up in the fall and brought inside as a fall houseplant. A great alternative to Impatiens in shady windowboxes, borders and beds.