Ordinary soil can be used to grow sunflowers, which is basically not picky and very easy to raise. As for fertilizer, bean dregs fermentation can be used as the basic fertilizer of soil. Moreover, in the process of flower growth, there is no need to fertilize regularly, and even watering can be omitted. Compared with drought, humidity is more deadly to it.
Sunflowers certainly need plenty of sunshine. Only by receiving enough light can it thrive and grow from a few plants to a large area. Even if it is only planted on your own balcony, it can become a sea of flowers, and its vitality can rank first among all kinds of flowers. The optimum temperature of sunflower is generally 18-24 degrees.
In late autumn, after the sun flower withers, it doesn't need to be cared for, because its life span is only one year. After the spring of next year, as long as we sow some more seeds, when the temperature is right, this tenacious plant will sprout and grow in the sun and bloom brilliant flowers.