When do sunflowers usually bloom? How do you plant it?

Sunflower, also known as pine leaf peony, half lotus, is a kind of ornamental flower with more colors and light fragrance, because it usually blooms when it sees the sun, so it is called this name. Sunflowers have a strong ability to adapt to the environment and are very easy to feed, so they are suitable for planting and decorating the surrounding environment in parks and courtyards. When do sunflowers usually blossom? How do you plant it?

When do sunflowers usually blossom?

Sunflowers are generally developed from June to September every year, and they are common ornamental flowers in summer. But it doesn't blossom for a long time, only when there is a sun. In addition, there are many factors that affect the opening time of sunflowers. For example, the size of the sun bud, if the bud is small, the flowering time is shorter and the color is lighter. If the bud is large, it will bloom for a relatively long time, so we should pay attention to fertilization. The intensity of light will also affect the flowering time of sunflowers, for example, the stronger the light, the shorter the flowering time, and the longer the flowering time in cloudy and rainy weather.

Second, how to grow sunflowers?

1. Prepare the basin soil

Planting sunflowers does not require much of the soil because it has a strong ability to adapt. But if potted plants want sunflowers to grow well, they need to prepare loose, breathable and fertile soil. In this process, some bean dregs and oily foods can be collected as base fertilizer.

2. Sowing seeds

The seeds of sunflowers are very small, so they usually choose the time of April and May to sow. It takes three or four days to break the shell and sprout after sowing, and there is a growing period of more than a month. When sowing, the sunflower seeds should be closely combined with the soil, evenly scattered on the surface of the basin soil, and then covered with a thin layer of fine soil.

3. Raising seedlings

During the emergence of sunflowers, attention should be paid to the work of inter-seedling and seedling transfer. The main purpose is to keep the sun seedlings growing in a certain space so that they are not too crowded. When the sun flower seedlings grow to three or four millimeters, they can be divided into batches and time. Pull out the thin sun seedlings and leave the stout ones.

4. Watering

Sunflower seedling stage, the weather is not very hot, moisture evaporation is slow, not suitable for watering too much. When the sunflower blooms in three days, the water demand is relatively large, and it needs to be watered thoroughly at one time, and then fully absorbed. In the rainy season, it is necessary to master the amount of watering, not too much watering at one time, so as to avoid the phenomenon of stagnant water and rotten roots.

5. Collect seeds

The seeds of sunflowers are silver gray, and the timing of harvest is very critical, because when the seeds crack, the seeds will fly away. Usually should pay attention to often use water to touch the yellow seed shell, once touched the seed fall is more appropriate.