Calendula officinalis has the advantage to grow in almost any type of soil, indoors or outdoors, and can withstand the heat as long as the soil remains cool. On the other hand, it fears the frost. Ideally, plant – the March-May, 1 cm deep in a place with good sun exposure.
Once planted, water it regularly enough to keep the soil moist. The first buds will emerge 5 to 7 days after planting.