How to cultivate sunflowers?

1, soil: Sunflowers have strong adaptability, and sunflowers can grow in general soil. Of course, if you want to raise sunflowers well, you should choose better nutrient soil and mix it yourself. The formula is: pastoral soil 30%, yellow sand 50%, broken branches and rotten wood 20%.

2. Illumination temperature: The suitable growth temperature of sunflower is between 15-25 degrees, and it is not cold-resistant. Potted plants should be placed indoors in winter, and the temperature should be controlled above 10 degrees. Sunflowers like light very much. They can't grow without it. Not afraid of the sun, not afraid of exposure in summer. Especially in the growing period, as long as sufficient lighting conditions are provided, plants will present a beautiful scene of flowers.

Cultivation methods and matters needing attention of sunflower

3. Watering: Sunflowers grow fast and have a large amount of flowers, so there will be a great demand for water. Sunflowers like to grow in a warm and humid environment. Therefore, it is suggested that the amount of watering can be appropriately increased to maintain a micro-humid environment, but attention should be paid not to accumulate water, and it is generally good to look at dry and wet.

4. Fertilization: When sun flowers are maintained, some phosphate fertilizers are often used, which can effectively promote flower inoculation. Diluted potassium dihydrogen phosphate fertilizer can be used once every 10 day, and attention should be paid to avoid excessive use of nitrogen fertilizer to avoid excessive branches and leaves affecting flowering.

Cultivation methods and matters needing attention of sunflower

Matters needing attention

In the maintenance of sunflower, it is necessary to turn over the pots and change the soil every 1 ~ 2 years, throw out the hardened soil, replace it with loose and breathable new soil, cut off the roots and replant it. When the temperature is low in winter, the water temperature should be close to room temperature to avoid the sunflower roots from freezing and withering.