Radio is a 1930s calendula classic with crisply defined, quill-like petals from bright yellow to golden-orange. Sow 1/4 inch deep outdoors 1 to 2 weeks before the last frost, a few seeds every 6 to 12 inches; germination takes 7 to 14 days at 65 to 70ºF.
Upright bushy plants grow about 24 inches tall by 12 inches wide and flower in 50 to 60 days. The packet includes 50 seeds, and repeat sowings every 2 to 3 weeks keep bouquets coming.
