Sow directly outdoors in a sunny location after last frost date. This variety prefers well-drained soil.
Try to aim for a seed spacing of at least 0.98 inches (2.5 cm) and sow at a depth of around 0.1 inches (0.25 cm).When seedlings are 2-3 inches tall, thin to 18-inches between.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Mixed Colors is a half hardy plant.