Sow
0.23 inches (0.6 cm) deep with a guideline distance of
11.7 inches (30.0 cm). Soil temperature should be kept higher than
5°C / 41°F to ensure good germination.
By our calculations, you should look at sowing Renee's Caesar Duo about 60 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Renee's Caesar Duo is a tender plant.