1. Maintenance and management of potted flowers when displayed indoors in winter. When winter comes, potted flowers enter the room. When maintaining and managing potted flowers indoors, the following points should be paid attention to: Temperature. Various potted flowers have different temperature requirements. Yes, it is impossible for the same indoor temperature to meet the needs of various potted flowers, so the indoor temperature should not be too high or too low. If it is too high, the flowers will easily wither, and if it is too low, it will affect normal growth. Potted flowers that like warmth can be placed close to internal heat sources or in sunny places, while potted plants that are more resistant to cold can be placed on the shady side or at entrances and exits. Humidity is indoors. Potted flowers that like drought should be placed in a place with strong sunlight and good ventilation. If they are placed in the shade, they will cause leggy growth. Potted plants that like moisture should be placed in a place that is not suitable for exposure to the sun. If the air is too dry, they will grow. Yellowing of leaf tips appears. Water frequently to keep the pot soil moist. Some potted plants also need to spray water on the leaves frequently to create a humid environment to meet the water requirements of the potted plants. Ventilation Potted flowers that are indoors and like to be dry should be placed in a well-ventilated place. When there is sufficient sunshine at noon in winter, windows should be opened appropriately to allow air circulation. Open less often or not at all during snowy days. While maintaining indoor sanitation, you should often spray water on the leaves to remove dust on the leaves to facilitate the respiration of the plants. Broken flowers and dead branches should also be cut off in time. Replacement of potted flowers. Potted flowers displayed indoors are affected by insufficient sunlight, insufficient humidity, small air flow, and excessive dust, which affects the growth of the plants. In particular, some rare and famous flowers are difficult to maintain if their leaves turn yellow, their branches wilt, or their roots rot. Therefore, the position of potted plants should be changed frequently indoors, preferably once every 5-7 days. When changing the position of potted flowers in winter, pay attention to cold protection. Generally, it is suitable to change the position at noon on a sunny day. Do not let the potted flowers that are moved away suffer frost damage. 2. How to place overwintering potted flowers. After winter, potted flowers should be moved indoors one after another, and the potted flowers should be placed appropriately after entering the room. Flowers that bloom in winter and spring, such as crab claws, cyclamen, poinsettia, camellia, etc., as well as autumn-sown grass carnations and snapdragons, as well as flowers that like light and warmth (Milan, jasmine, white orchids, hibiscus) should be placed on the windowsill or A sunny place; flowers that like semi-shade in summer and light in winter, such as Clivia, fuchsia, etc., also need to be placed in a sunny place; flowers that like warm and semi-light, such as asparagus, four-season crabapple, azalea, etc., can be placed Place far away from the window sill; evergreen flowers and trees that like light but can withstand low temperatures or dormant flowers, such as osmanthus, citrus, etc., can be placed in a cool place with scattered light; others can tolerate low temperatures but fall leaves or have poor light requirements. Strict flowers, such as potted lotuses, water lilies, etc., can be placed in a cool place without light; small pomegranates, roses, figs, etc. must be frozen outdoors for a period of time and then moved indoors to a cool place for storage. 3. How to keep potted flowers warm in winter: For large-scale production, you can spend the winter in a greenhouse, while for a small amount of potted flowers, you can make a simple greenhouse to keep them warm. A simple greenhouse can be made of bamboo or iron poles on the balcony or terrace, covered with plastic film, and covered with straw in the evening. Indoors, you can use thin bamboo slices or lead wires inserted around the pot to form an arch (the height is about 10 cm higher than the plant), cover it with a transparent plastic film, tie it tightly along the mouth of the pot with a rope, and place the potted flower in a sunny place. place. If the weather is sunny and the temperature is high, the film can be removed at noon and ventilated to avoid rot. You can also leave a few small holes in the film to facilitate ventilation. Generally, there are water droplets in the inner layer of the film in the form of clouds, indicating that the temperature and humidity are suitable. After pouring water, remove the film and wait for the water to evaporate for a period of time before covering it again. Newly cut branches cannot be covered because they are prone to mold and rot before the wounds heal, causing death. 4. Manage water and fertilizer wisely for potted flowers in winter. Due to the low temperature in winter, the water and fertilizer management for potted flowers is different from that in other seasons. It is particularly important to manage flowers wisely depending on the time. Now based on experience, let’s talk about the skills in this area. The appropriate watering time for watering potted flowers in winter is from 10 am to 3 pm, and the water temperature should be roughly close to the soil temperature and air temperature. If it is too high or too low, it will irritate the potted flowers and affect the normal wintering of the flowers. This can cause plant defoliation, root rot and even death. The frequency and amount of watering for potted flowers in winter are less than in other seasons. Generally, indoor potted flowers are watered once a week, and potted flowers grown on the balcony are watered twice a week. Water thoroughly every time and avoid watering "half-way", because the absorption function of the root system is weak in winter, and excessive moisture can easily cause root rot. If it is too dry, the hairy roots with absorption function will dehydrate and die. In addition to maintaining the pot soil needs through watering in winter, the branches and leaves of the plants must also be properly sprayed with water. For example, for foliage monsteras, pineapples, asparagus, spring feathers, rubber trees, green giants, pothos, rubies, etc., spraying water can not only wash away the dust on the leaves, but also make the leaves look cleaner and fresher. . For flowering camellias, clivias, plum blossoms, wax plums, primroses, cyclamen, etc., keeping the plants moist will not only make the branches and leaves full of vitality, but also accelerate the expansion and opening of the flower buds; for flowers that have already bloomed or Inflorescences should be sprayed with water instead of spray to prevent the flowers from withering prematurely. For fruit-viewing bamboos, pyracantha, bergamot, kumquat, etc., spraying water can make the leaves and fruits brighter. How to fertilize potted flowers in winter depends on the type of potted flowers. Potted flowers that are in a dormant state, such as pomegranate, begonia, hibiscus, cactus, bulbous begonia, white orchid, Milan, pearl orchid, jasmine, rose, peony, podocarpus, etc., do not need to be fertilized. Appropriate amount of compound fertilizer can be applied to foliage potted flowers, such as monstera, spring feather, peach coral, Schefflera, rubber tree, orchid, asparagus, hydrangea pine, etc. A small amount of granular fertilizer can be buried in the soil .

For ornamental potted flowers, phosphorus and potassium fertilizers can be added, such as cyclamen, camellia, wintersweet, plum blossom, cineraria, primrose, primula, clivia, etc. 0.2%-0.3% potassium dihydrogen phosphate solution can be applied to the flower buds. Stop fertilizing after opening your mouth. Superphosphate granular fertilizer should be applied to fruit-bearing species, such as Tianzhu, kumquat, bergamot, Daidai, winter coral, etc. The condition for fertilizing is that the room temperature must be higher than 10°C, otherwise the fertilizer will not be easily absorbed. After autumn, the temperature begins to drop, so potted flowers should pay attention to fertilization, pruning, pest control and keeping warm. 1. Reasonable fertilization. Autumn fertilizer is extremely important for the growth, flowering and fruiting of flowers and trees in autumn and winter, as well as for enhancing the cold resistance of branches. Therefore, most flowers and trees need to be fertilized in autumn. 2. Plastic trimming. There are many buds from potted flowers in autumn, and they cannot be allowed to develop. Except for some that should be retained, the rest should be cut off to avoid wasting nutrients. Reasonable pruning will help the plant accumulate nutrients, lay the foundation for the next year's growth, and can promote growth. It has the function of aging and enhancing cold resistance. 3. Prevention of diseases and pest control. Autumn is the last time that insect pests lay eggs, so it is necessary to completely get rid of heart-eating insects, beetles, etc. that are parasitic on flowers and trees. 4. Keep warm from cold. After the cold dew, there will be a cold wave. At this time, if there is insufficient light, improper temperature, and an imbalance of fertilizer and water, the plants will easily weaken. In order to prevent potted flowers that like warmth and fear of cold from being attacked by frost, they should be placed under the eaves with sufficient sunshine and leeward direction for maintenance after the Mid-Autumn Festival. When the temperature drops to 5°C, move indoors to a sunny location. High temperatures, strong light, and poor indoor ventilation in summer are very detrimental to the growth of potted flowers. Therefore, you should pay attention to the following points in daily management: Do a good job in regulating water. Water evaporates quickly at high temperatures, especially potted flowers with lush branches and leaves that are in their blooming period, and water consumption is faster. Therefore, sufficient water should be provided, usually watering once in the morning and once in the afternoon. The amount of water depends on the size of the plant, weather conditions, and the dryness and humidity of the pot soil. Generally, herbaceous flowers have high water content and high transpiration intensity, so they need more watering; woody flowers, such as camellias, camellias, etc., need less watering. For flowers that are in a dormant or semi-dormant state, such as narcissus, tulips, etc., watering should be strictly controlled. In addition, it is best to water in the morning and evening in summer. Avoid pouring cold water at noon to prevent physiological drought. Pay attention to shading and ventilation. In summer, potted flowers should be moved to a cool and ventilated place on the windowsill or balcony. The shade degree should be 50%. Otherwise, being exposed to direct sunlight for a long time will cause the branches and leaves to turn yellow or even die. At the same time, spray water on the leaves frequently to lower the temperature of the plants so that the flowers can survive the summer safely. Strictly control fertilization. Fertilization in summer should vary depending on the flower. For potted flowers that grow well, especially herbaceous flowers, you can insist on applying decomposed liquid fertilizer or compound fertilizer every half a month to ensure that the plants germinate new branches and promote growth or flowering; For flowers that have entered the dormant or semi-dormant period, fertilization should be stopped. The appropriate time for fertilizing is generally in the evening. At the same time, care should be taken not to splash the fertilizer water on the branches and leaves of the flowers to avoid burning the leaves. Properly prune and thin buds. Properly prune old branches, residual branches and leggy branches, and rationally thin buds to facilitate ventilation and light transmission and reduce pests and diseases. At the same time, it also facilitates the concentration of plant nutrients, promotes the formation of new branches, new buds, and new leaves, which is beneficial to improving the quality of future flowering. Don’t forget to loosen the soil frequently. Summer is the peak period for microbial reproduction. Frequent loosening of potted flowers is conducive to the reproduction and growth of microorganisms, accelerates the decomposition of organic matter in the soil, and provides flowers with a variety of trace element fertilizers. As for the time to loosen the soil, it is best to do it before watering or fertilizing, because this will help the roots absorb water and fertilizer. Preventing and controlling pests and diseases Summer is the season when pests and diseases of domestic potted flowers are most common. Common pests and diseases mainly include scale insects, red spider mites, aphids, heart-eating worms, chili peppers, etc. Once these pests occur, in addition to timely spraying to kill them, they can also be eliminated manually. In order to replenish fertility and improve plant nutritional conditions, most potted flowers used for home greening should be repotted in spring, that is, before and after Qingming Festival. When repotting, first remove the plant ball with soil from the pot, and then, depending on the development of the root system, either plant it in a new pot that is slightly larger than the original pot, or remove part of the soil and old roots and plant it in the original pot. When planting seedlings, they should be properly replaced with fertile new soil, applied with sufficient base fertilizer, watered thoroughly, and placed in a shaded place first, and then left the room after the growth resumes. Flowers such as hibiscus, fuchsia, jasmine, rose, and oleander should be heavily pruned in early spring. However, evergreen plants such as Nanyang pine, dragon cypress, cedar, and rubber trees should not be pruned too much, so as to maintain their plant shape. Natural and beautiful. Camellia, Milanese and vine flowers generally do not need regular pruning. Just cut off their dense branches, dry branches, and branches infected by diseases and insect pests. The temperature in spring in the north is unstable, so don't rush to move potted plants outdoors. Cold-tolerant woody or perennial flowers such as conifers, roses, winter jasmine, plum blossoms, peach, and oleander can leave the house around the Qingming Festival, while most flowers are best left in early to mid-May. In order to allow the potted flowers to adapt to the outdoor environment before leaving the house, the doors and windows can be opened at noon every day after the vernal equinox to enhance indoor ventilation. In addition, the amount of watering for potted flowers in spring should be more than in winter, but it should not be too much. It should be "dry and wet". When watering, water it thoroughly at once, and avoid "watering like a dragonfly", leaving the pot soil wet at the top and dry at the bottom. After the flowers come out of the house, fertilize once a week.