Question for number 21-24

    Jasmine is a native flower to some tropical areas in South Asia, Africa and Australia. In India, some varieties of Jasmine are used for religious purposes. The flower can grow up to 3 meters high and 2 meters wide. It releases its fragrance mostly after the sun sets especially nearing the full moon. Therefore, it is often associated with soothing night- time moods.

    The planting of Jasmine is started by putting some cuttings in 3 inch posts within 4 weeks. After the roots grow, they are put into 6 inch pots. The soil in the pots should be kept moist but possible for the water to go through it for optimum growth. There are some important advantages of Jasmine. In medication, this flower is often used for soothing headaches, stimulating brain, and restoring balance. Its extract is also widely used in the making of perfume. 

What is the main idea of the last paragraph?