The newly planted begonia flowers withered and the petals began to fall. What happened? If you just bought it, it doesn't matter. The transportation of flowers and the change of environment will inevitably produce the phenomenon of dead leaves and fallen leaves. It will be all right in about half a month. This flower likes low temperature and looks at the emperor, so the frost top is afraid of cold. The growth temperature is 15 to 20 degrees, and it is suitable for flowering at 15 to 17 degrees. Falling flowers may be caused by low temperature, cold wind blowing, dry air and strong light. The flowers in the greenhouse are difficult to grow, which is a test of technology.
How to raise new begonia flowers? Newly planted begonia flowers should pay attention to water conservation, ventilation and scattered light.
1, water and fertilize. It is advisable to keep the basin soil moist when watering. In dry and midsummer weather, it is necessary to spray water on leaves and ground, and improving air humidity is beneficial to growth. Avoid water and rain in the basin, otherwise the roots will rot easily. Potted soil should be slightly dry in winter, and clean water should be sprayed on leaves and environment every 7 days, which not only increases humidity but also makes leaves clean. Apply 1 times pancake fertilizer and water for about 10 days during the growth period; Topdressing available phosphate fertilizer in bud stage. When applying fertilizer, be careful not to splash the fertilizer solution on the leaves; Flowering and winter and summer are not suitable for fertilization.
2. Light and temperature. The suitable temperature for the growth of begonia is 18~20℃, which has good ventilation and scattered light environment. Measures such as shading, ventilation and watering should be taken in high temperature season; It is best to keep the room temperature above 10℃ in winter, and it can be placed in a sunny place. It should be placed in outdoor scattered light every week 1~2 times, and in sunny place in winter.
Can begonia survive in the soil after being cut? Yes, but at this time, it's not good. When thawing in early spring every year, take thick branches from old trees, cut a section every 3-4 buds, insert them obliquely in flowerpots, put 3-4 in flowerpots, water them, and put them in plastic bags to cover the flowerpots. In early spring, the sun is not poisonous, so you can put it in the sun directly, and you will survive when you see the bud ~
The bag is missing. Just pay attention to water and fertilizer.
How to plant begonia flowers? At the beginning of July, the potted begonia trees were moved to the shade to cool down, reduce the light and control the watering. The watering should be gradually reduced until the leaves turn yellow and fall off on their own to promote their dormancy. Then continue to water a small amount to maintain life and not sprout new buds. After 35-45 days of dormancy, put the plant in full light, water it and add liquid fertilizer to wake it up and sprout new buds (leaves and flowers are the same). In another 5-7 days, you can see the bright and dazzling begonia flowers. In addition, flower buds are sensitive to temperature. In the dead of winter, potted begonia piles can be moved to the sunny place of greenhouse by heating and forcing flowers, watered and applied with liquid fertilizer, and then sprayed with water on plant branches every day to keep the room temperature at 20-25℃. It can bloom after 30-40 days, and can be used for decoration and appreciation on New Year's Day or Spring Festival. Cut flowers with big branches can also be popularized in greenhouses. It can be watered in batches all winter and used as needed.
How to raise begonia flowers? Begonia originated in China. The flowers are constant, the buds are red and pink after flowering, and the stems are about 4 cm. Flower buds are mostly born on short and medium fruit branches, and open at the same time with leaves in early spring. Sex loves sunshine, avoids stagnant water, and is resistant to early and cold.
Morphological characteristics of begonia
Small deciduous trees. The bark is grayish brown and smooth. Leaves alternate, oval to oblong, slightly pointed at the apex, wedge-shaped at the base, with flat and blunt teeth at the edge, dark green shiny surface, gray-green pubescent at the back, slender petiole and two lanceolate stipules at the base. Bouquet of 5-7 flowers, umbrella-shaped racemes, which are red when not opened, gradually turn pink after opening, mostly semi-double, and few single flowers. Pears are spherical and yellow-green.
Key points of propagation and cultivation of begonia
Grafting, layering, cutting, branching, sowing and propagation.
Grafting before germination in spring or between July and September in autumn. Propagation by ramets before germination in spring or after defoliation in autumn and winter. Spring layering and root cutting. Before sowing in spring, the seeds must be treated with low temperature stratification to accelerate germination for 30 days-100 days. After planting seedlings, the soil should always be loose and fertile, and pond silt or fertile soil can be cultivated in the rhizosphere every autumn. Prune once in spring, cut off dead branches and weak branches, and keep tree-like evacuation, ventilation and light transmission.
A Brief History of Begonia Cultivation and Flower Culture
Haitang is still there. A pear flower presses Haitang. Begonia and rain. Begonia is a beautiful flower, which blooms beautifully. Since ancient times, it has been a famous flower that appeals to both refined and popular tastes. Known as the "fairy among flowers", "noble flower" and "noble flower". In the royal gardens, Magnolia, Peony and Osmanthus fragrans are often planted, forming the artistic conception of "Yaochi is rich". Scholars of all ages have many well-known poems praising Haitang. Lu You's poem said: "Although it is flashy, the emperor is really rich." Describe the beauty and elegance of begonia. In another poem by Lu You: "The scarlet parrot is extremely green and clever, and the overlapping calyx shines in the morning." Describe the image of bright red flowers and green leaves of begonia flowers and lush flowers competing with Asahi. In Song Dynasty, Liu Youshi said: "Beautiful posture makes spring shine, plum blossoms lend light ... After several nights of rain, the fragrance is still there, but it is impossible to paint all the rouge ..." It describes Haitang as a demure lady, so it combines the advantages of plum and willow, which is charming and charming. After the rain, the fragrance is still there, and the fragrance of flowers is beyond words. No wonder Tang also compared the sleeping Yang Guifei to Haitang.
In Chi Pan, Begonia flowers are planted on both sides of sidewalks, around pavilions, on the edge of jungles and on the seashore. Begonia flower is the material for making bonsai, and the cut branches can be used for decoration such as inserting bottles. Begonia flower has strong resistance to sulfur dioxide, which is suitable for urban street green space and mining area greening. In addition, some begonia fruits can be eaten and used medicinally. Flowers contain thick juice, which is a good source plant.
Begonia varieties:
Xifu begonia: also known as red begonia. The flowers and leaves are in full bloom, and the unopened buds are red and pink after opening. Double flowers, flowers and brocade are very bright on the green leaves.
Double Bai Haitang: Also known as Bai Haitang. Double white or reddish.
Begonia belongs to the same species:
There are about 35 species of begonia, and there are more than 20 species in China, most of which are for viewing. The most common variety cultivated in all parts of China is Malus pendula. When flowering, the pedicels are slender, the flowers droop and the color is dark rose. Often 4~7 flowers hang into a ball, hence the name. The flowering period of Begonia pendula is from April to May, and its color is gorgeous. Its varieties include double-petalled begonia and white-petalled begonia.
Begonia, Begonia, Begonia Rose, Begonia Rieger, Begonia Brazil, Begonia equisetifolia, Begonia Rieger, Begonia Antlers, Begonia Bulbous, Begonia Pendulum and Begonia sessile.
Attention should be paid to during maintenance:
(1) Water and fertilize. It is advisable to keep the basin soil moist when watering. In dry and midsummer weather, it is necessary to spray water on leaves and ground, and improving air humidity is beneficial to growth. Avoid water and rain in the basin, otherwise the roots will rot easily. Potted soil should be slightly dry in winter, and clean water should be sprayed on leaves and environment every 7 days, which not only increases humidity but also makes leaves clean. Apply 1 times pancake fertilizer and water for about 10 days during the growth period; Topdressing available phosphate fertilizer in bud stage. When applying fertilizer, be careful not to splash the fertilizer solution on the leaves; Flowering and winter and summer are not suitable for fertilization.
② illumination and temperature. The suitable temperature for the growth of Japanese begonia is 18~20℃, which has good ventilation and scattered light environment. Measures such as shading, ventilation and watering should be taken in high temperature season; It is best to keep the room temperature above 10℃ in winter, and it can be placed in a sunny place. When raised at home, it should be placed in outdoor scattered light 1~2 times a week during the growing period, and in a sunny place in winter.
(3) Tie and turn over the pot. Because begonia plants are tall, they need to be supported by thin bamboo to prevent lodging. At the same time, turn over pots, change soil, prune branches and cut off weak branches, overlapping branches and residual roots every spring. Plants that have been flowering for 2~3 years and are too high should be cut short, leaving only 6~ 10 cm for new shoots to sprout again.
(1) timely pruning. Pruning branches that are too dense and too sparse before germination in early spring every year is conducive to ventilation and light transmission, promoting growth and flowering, and reducing the occurrence of pests and diseases; For old plants, old branches should be regenerated. In spring, big branches with few branchlets should be sawed off with a sharp saw. After sprouting new branches, a few strong branches should be selected, and the weak branches should be cut off. After 1 year culture, they can blossom.
② Fertilizer and water management. Plant early spring buds before they germinate, and apply decomposed organic fertilizer before planting. Every autumn, after defoliation, furrows are dug in its rhizosphere, decomposed organic fertilizer is applied, and soil is covered and watered. Adult plants should not be watered too much, which is easy to produce yellow leaves. Generally, water is poured 2~3 times in spring, 1~2 times in summer and autumn, and 1 time in winter.
3 Pick fruits in time. Young fruits should be picked in time after the flowers wither to preserve nutrition and increase the number of flowers in the coming year.
④ Pest control. Begonia Xifu is vulnerable to aphids, red spiders, scale insects, longicorn beetles and other pests, so it needs to be sprayed in time.
How to raise begonia flowers? I like cool, humid and semi-cloudy environment. Very sensitive to environmental changes, especially the sharp changes in temperature and light. Flowering plants should not be placed in dark rooms or balconies with direct sunlight. The optimum growth temperature is 15 ~ 25℃, and it is not resistant to high temperature. When the temperature exceeds 30℃, the stems and leaves wither and the buds fall off. When the temperature is higher than 35℃, the tubers on the ground and underground parts rot and die. This plant belongs to the long-day flowering and short-day dormancy type.
It withers on the ground after flowering every year, but the bulb tuber still needs to be preserved and planted in February-March of the following year. Planting tubers should not be too deep, and the top of tubers should be flush with the soil surface. Apply sufficient base fertilizer to the soil before planting and keep the soil moist after planting. When the temperature is 15 ~ 20℃, the buds at the top of the tuber can grow after about 2 ~ 3 weeks.
Cultivation methods and precautions of begonia flowers How to raise begonia flowers Begonia flowers are usually cultivated by sowing, branching and grafting. Sowing can be autumn sowing or spring sowing after sand storage. Horticultural varieties are propagated by grafting, with Vitex negundo or Begonia seedlings as rootstocks, branch grafting and bud grafting. Branch grafting can be cut and split grafting, and bud grafting can be made in a "D" shape. In addition, the cultivation of begonia flowers should also pay attention to temperature and humidity, fertilization, pruning and pest control.
Begonia flower is extremely cold-tolerant, and the suitable growth temperature is 18~20℃. It is advisable to keep the basin soil moist when watering. In dry and midsummer weather, it is necessary to spray water on leaves and ground, and improving air humidity is beneficial to growth. Avoid water and rain in the basin, otherwise the roots will rot easily.
Apply large fertilizer after autumn begonia leaves fall to ensure nutrient loss; When sprouting in spring, organic fertilizer should be applied again.
After the leaves fall and before the spring buds, the begonia flowers should be pruned once, and the dead branches, weak branches and branches with pests and diseases should be cut off to keep ventilation and light transmission; Of course. In order to ensure its vigorous flowering, it is necessary to cut the long branches short so that other axillary buds can get more nutrients and reduce nutrient consumption. Pick the heart in time during the growth period to keep its nutrition.
Finally, the cultivation method of begonia flowers should pay attention to the prevention and control of pests such as scarab, leaf curl, aphid, marsupial moth and red spider, as well as rot and brown spot.
There are watering, fertilization, light, temperature, binding and turning pots.
1, water and fertilize. It is advisable to keep the basin soil moist when watering. In dry and midsummer weather, it is necessary to spray water on leaves and ground, and improving air humidity is beneficial to growth. Avoid water and rain in the basin, otherwise the roots will rot easily. Potted soil should be slightly dry in winter, and clean water should be sprayed on leaves and environment every 7 days, which not only increases humidity but also makes leaves clean. Apply 1 times pancake fertilizer and water for about 10 days during the growth period; Topdressing available phosphate fertilizer in bud stage. When applying fertilizer, be careful not to splash the fertilizer solution on the leaves; Flowering and winter and summer are not suitable for fertilization.
2. Light and temperature. The suitable temperature for the growth of Japanese begonia is 18~20℃, which has good ventilation and scattered light environment. Measures such as shading, ventilation and watering should be taken in high temperature season; It is best to keep the room temperature above 10℃ in winter, and it can be placed in a sunny place. When raised at home, it should be placed in outdoor scattered light 1~2 times a week during the growing period, and in a sunny place in winter.
3. Tie it up and turn the basin over. Because begonia plants are tall, they need to be supported by thin bamboo to prevent lodging. At the same time, turn over pots, change soil, prune branches and cut off weak branches, overlapping branches and residual roots every spring. Plants that bloom for 2~3 years and are too high should be cut short, leaving only 6~ 10 cm stems for them to germinate new branches again.
China is rich in begonia resources, and the common ornamental varieties are: Begonia pendula (m.halliana), Begonia hupehensis (m.hapehensis), Begonia Xifu (m.mlcromalus), Begonia fruit (m.pranifolla), Vitex negundo (m.baata) and so on.