The sun flowers are directed there in the evening

Sunflower Scientific name: portulaca grandiflora Alias: half-branched lotus, pine-leaved peony, purslane macroflora.

Family: Purslane, Purslane.

Native to Brazil, South America. It is cultivated all over the country. 1-year-old fleshy herb, 10-15 cm tall.

The stems are thin and rounded, lying flat or oblique, with tufts of hairs on the nodes. Leaves scattered or slightly clustered, cylindrical, centimeter long. The flowers are apical, centimeter in diameter, with leaf-like bracts at the base, and the petals are brightly colored, with white, dark, yellow, red, purple and other colors.

The capsule is lobed when ripe, and the seeds are small and delicate, brownish-black. Blooms in June-July. There are many varieties of horticulture, including single petal, semi-double petal, and double petal.

Prefers warm, sunny and dry environments, and does not grow well in dark, damp areas. It is extremely resistant to barrenness and can be adapted to general soils, and sandy soils with good drainage are the most suitable. It can be sown and reproduce by itself.

Seeing the sun blooming, the morning, evening, and cloudy days are closed, so there is the name of the sun flower and the noon flower.

Propagation with sowing or cuttings. Sowing can be done in spring, summer, and autumn. When the temperature is above 20, the seeds germinate and germinate about 10 days after sowing.

The soil should be thin, and it can grow without covering the soil. Seedlings are planted separately with a row spacing of 5 to 6 cm. Liquid fertilizer needs to be applied several times.

It can bloom in about 20 days under conditions above 15. Propagation by cuttings is often used in double-petaled varieties, where the cut shoots are used as cuttings in the summer, wilted stems can also be used, and flower buds appear after cuttings. Transplanting plants does not need to be soiled, and there is no need to water them frequently during the growing season.

The fruit cracks when it is ripe, and the seeds are easy to scatter, so they need to be harvested in time.

The sunflower plant is short, the stem and leaf flesh are smooth and clean, the flower color is abundant, and the flowering period is long. It is advisable to arrange the periphery of the flower bed, and it can also be set up as a special flower bed. Whole herbs can be used as medicine.

The sun does not move, at night, from west to east.

The direction in which the sun is going to rise.

Yunna, you haven't seen it or come to play.

No sun is naturally setting.

Sunflower is a very common paving grass flower in urban green belts, which only blooms when the sun comes out, which is why it gets its name. "In the afternoon and evening, or when it's cloudy, it puts away its petals and reopens them the next day when the sun is strong. "So at noon it blooms to the sun, and at other times people mistakenly think that it is a flower.

Sunflowers, well. There is no sun, and of course there is no blooming

In fact, the "sleep movement" of the flower sunflower is a self-protection action. "Sleep exercise" is beneficial to reduce the emission of water from the cells that store water. Maintaining a high water storage capacity can help the sunflower to resist drought and keep its physiological activity in a normal state, which is a good state for the sunflower to adapt to the environment.

The protective mechanism in the sunflower is very strong, so it can reflect the "sleep movement" very sensitively, and the contraction and gathering action of its leaves will be immediately manifested in the evening. However, if the sunflower is in a weak state or the growth environment is not good, the "sleep movement" will be sluggish, so the health of the peanut can also be judged by observing its sensitivity and closure.

When the reporter interviews the reporter, he is looking for money everywhere. Always.

In nature, many plants grow towards light, and they need sunlight to help them photosynthesize. This is the same as the human need to eat and rest is a reason, there is no object that can not absorb energy and exist forever, only the replenishment of energy can achieve a series of activities, and although the plant has been in a static state, but when people can't see, they are actively growing, from a seedling to a towering tree, is the result of plant energy accumulation.

Where there is more sunlight, the plants tend to grow better. An important way for plants to create their own energy is to carry out photosynthesis, using light to break down some substances into the energy substances they need. Therefore, most plants are growing towards the sun, they will try to get close to the sun, over time, the branches and leaves on the plant will be fixed in the direction of the sun, and there may even be a situation where the plant grows differently on both sides of the sun and without sunlight, and the more obvious sunflower phenomenon is the sunflower in nature, which is what people call the sunflower, and the petals of the sunflower grow in the direction of the sun.

And human beings have a lot of similarities with plants in terms of light. Although human beings don't like to stay in the sun every day, and even in the scorching summer sun, people will complain about the temperature of the sun, but in the hearts of many people, they like the sun very much. The sun brings us light and helps us grow, although human beings cannot photosynthesize, and the sun cannot make people full, but it can help us grow better, without the sun, human life will be bleak and lose the original meaning of life.

This is probably the commonality of all things in the world, the sun and the eternal light, which are things that all things aspire to and have been pursuing. And the sun, as a representative of light, has also become the ultimate goal pursued by all things in the world.

Many words are about flowering towards the sun, the most obvious is the sunflower, its face is always facing the sun, when facing the sun, it can absorb the sunlight well, so that it can grow better.

Because plants need to photosynthesize, plants will better photosynthesize when they open to the sun, so they will choose to open to the sun.

Because plants are going to photosynthesize. They use the energy of sunlight to photosynthesize and obtain the nutrients necessary for growth and development. So open towards the sun.

Plants need light and action, and sunlight gives them energy. So they just look like this, face to face with the sun, so that they can absorb some of the energy.

Because the flowers of many plants have a phototaxis instinct, they can grow better and photosynthesize according to this instinct towards the sun.

To sleep. If you look closely, you will find that the leaves and flowers of some plants will open and close during the day, and some will open and close at night. Scientists call this phenomenon in plants "sleep movement".

2) For example, the acacia tree is common in parks, and its leaves are composed of many small feathers, which are stretched and flat in the bright sun. But when night falls, the countless small feathers fold and close in pairs, like mimosa leaves that have been touched by a hand, and all of them are closed, which is the typical phenomenon of plant sleep. Peanuts are also a sleepy plant, and their leaves begin to slowly close upwards from the evening, indicating that the day has passed and it is time to sleep.

Sometimes, in the wild, we can also see a red clover with small purple flowers and three leaflets, which stretches out in the air when there is sunlight during the day, but in the evening, the three leaflets close together and hang their heads to prepare for sleep. The above are just some common examples, and there are many, many more plants that can sleep, such as sorrel, celandine, mimosa, carob, etc.

3) The flowers of the plant also have sleep requirements. The sleep of flowers can be early and late, long and short. Sunflower is a snooze little guy who just woke up at 10 o'clock in the morning and bloomed with colorful flowers, but as soon as noon it closed up and went to sleep.

On cloudy days, it seems to be playful, and it doesn't fall asleep until the evening. All kinds of flowers sleep,

The sunflower is also called the noon flower, because it generally blooms at nine o'clock in the morning and withers at two o'clock in the afternoon.

Some plants can only photosynthesize when there is light, so it is possible that they can be a form of self-protection when they are put together at night.

According to the light, it opens when it sees light, and closes at night and on cloudy days.

Because it's called a 'sunflower', there is no sun at night, so it closes.

Quite simply, it can't do without the sun. It also takes its name from the sunflower.

After 9 a.m. and after 4 p.m. Hope it helps.

After 9 a.m. and after 6 p.m.

The sunflowers bloom around four p.m.