Sow seeds indoors 6 to 8 weeks before last frost. Sow seeds in the surface and press into the soil to make contact. Seeds should be kept moist consistently. They can also be directly sown in the garden covering them very lightly with loose garden soil. Keep seeds moist until germination takes place.1
Ensure a distance of 0.2 inches (0.5 cm) between seeds when sowing - look to sow at a depth of approximately 0.1 inches (0.25 cm).By our calculations, you should look at sowing Carnival Mix about 56 days before your last frost date.
1 www.outsidepride.com/seed/flower-seed/hollyhock/hollyhock-carnival-mix.html