Marigolds are native to Mexico and Central America. They can grow in areas between 1150m and 1480m above sea level, mostly in roadside meadows. Marigolds are often sown in spring. Because of their large flowers and long flowering period, they are often used for flower bed scenery.

Marigolds are a kind of common garden greening flowers. Some varieties are suitable for flower beds, flower diameters, flower cluster materials, and can also be used as potted plants; Some varieties with higher plants can be used as background materials or cut flowers.

The suitable temperature for marigold to grow is 15-25 ℃, and the suitable temperature for flowering is 18-20 ℃. The relative air temperature of the growth environment is required to be 60-70%, and the temperature in winter is not lower than 5 ℃.

Marigold plants have strong resistance and absorption to hydrogen fluoride, sulfur dioxide and other gases, and can also attract nematodes in soil.

Marigolds are edible. It is a famous dish in the flower recipe. After washing and drying the fresh marigold petals, wrap them with powder and fry them. After frying, they smell so good and are delicious.