When is the best time to plant sunflowers?

In fact, sunflowers can be planted in spring, summer and autumn, but they are usually planted in spring, which is a good time to plant sunflowers. Sowing is usually carried out around April, and the ambient temperature of 15-25 degrees is conducive to rooting. Sunflowers usually bloom around May every year. This kind of flower has many colors, whether it is light or dark, and unlike ordinary flower plants, sunflowers usually only bloom in the sun. If it is cloudy or at night, it will close. This is a very strange plant.

Sunflower sowing method

1. Choose the right soil: sunflower is barren and does not need much soil. However, its seeds are very small, so it is generally recommended to use loose and breathable peat soil or sandy soil to raise seedlings, which will be more conducive to seed germination. 2. Sowing method: Spread the full sunflower seeds evenly on the soil, then cover it with a thin layer of soil, spray a small amount of water with a fine sprayer of the kettle, and do not water directly to avoid the seeds being washed away. Then move to a bright and ventilated place for curing, and keep the ambient temperature at about 20℃. It usually germinates in ten days.

Key points and skills of sunflower planting

1. In order to improve the germination rate of sunflower seeds, we should first pay attention to keeping the temperature appropriate. If the sowing temperature is not high, we need to cover the pot soil with thermal insulation film to keep the environment warm and humid. Such conditions are most conducive to the germination of sunflower seeds. 2. When the sunflower seedlings grow to a height of about 3 to 4 cm, we can remove the plastic film and pull out some weak seedlings. When the seedlings grow to the height of 10 cm, they can be planted alone. After planting separately, it can be maintained in a semi-cool and ventilated place for a week to keep enough water and promote the vigorous growth of plants. 3. In the subsequent maintenance process, in order to promote the vigorous growth of sunflower, appropriate supplementary fertilization is needed. Generally, it is good to apply potassium dihydrogen phosphate once every two weeks, which can make the flowering period longer and promote the blooming flowers to be large and bright.