Remove faded blooms to promote growth.
Keep in mind when planting that Gartfords Mixed Colors is thought of as hardy, so this plant will survive close to or on freezing temperatures.Sow outdoors in late autumn or early spring. In frost-free areas, sow outside in fall for late winter or early spring blooms. May be started indoors in a sunny window 6-8 weeks before transplanting in spring.
Try to aim for a seed spacing of at least 9.91 inches (25.4 cm) and sow at a depth of around 0.25 inches (0.64 cm).