Start indoors eight weeks before last frost date.
Ensure a distance of 1.95 feet (60.0 cm) between seeds when sowing - look to sow at a depth of approximately 0.2 inches (0.5 cm). Soil temperature should be kept higher than 15°C / 59°F to ensure good germination.By our calculations, you should look at sowing Rosita about 42 days before your last frost date.