According to the requirements of different flowers for temperature and light. For example, flowers that like high temperature and sunshine should be arranged in front of the south window, which is close to heating and sunny; Shade-resistant and high-temperature resistant flowers can be placed away from heating or near doors. Indoor temperature should not be too high or too low. Generally, the room temperature is not lower than 10℃ in winter and not higher than 30℃ in summer. Judging from the light requirement characteristics of flowers, sunny flowers need sufficient sunshine, and if they are placed in a cool environment, their growth will become weaker and weaker; On the other hand, shady flowers. Therefore, different flowers must be placed under different lighting conditions according to their different requirements for light. Flowers that usually bloom in winter and spring (crab claw orchid, cyclamen, chrysanthemum morifolium, poinsettia, camellia, etc. ) and grass flowers planted in autumn (carnation, snapdragon, etc.). ), and flowers that like light and warmth (Milan, Jasmine, Prynne, Fusang, etc.). ), should be placed on the windowsill or near the sunny place of the windowsill; Some flowers, such as Clivia, like semi-shade in summer and light in winter, and need to be placed in sunny places; Flowers that like warm and semi-light, such as asparagus, begonia and rhododendron, can be placed away from the windowsill; Evergreen flowers and trees that like sunshine but are resistant to low temperature or flowers that are dormant, such as osmanthus and citrus, can be placed under scattered light. And change the orientation of potted flowers regularly or irregularly. In this way, it not only helps to create conditions for photosynthesis, but also helps to keep the branches and leaves not skewed and look symmetrical and beautiful.

2. Humidity control:

There is too much water in the flowerpot, which makes the plants grow weak, the ability of cold resistance and stress resistance decline, and even leads to root rot, defoliation and death. Pot soil should be kept wet, not too wet or too wet. To water flowers and trees, we should master the principle of "seeing dry and seeing wet, not doing it, not watering it thoroughly". Under normal circumstances, flowers that like humidity should be watered more, and flowers that like drought should be watered less; Bulb flowers should not be watered too much; Herbaceous flowers have high water content and high transpiration intensity, and are watered more than woody flowers. Flowers with large leaves, soft, smooth and hairless should be watered more, while flowers with small leaves, waxy layers, fine hairs and skins should be watered less; Water more in the vigorous growth period and less in the dormant period; Water more seedlings in large pots and less seedlings in small pots; Drink more water in hot days and less water in cold days; Water more in dry days and less in rainy days. For ordinary flowers, the water supply in four seasons is: the temperature rises gradually after beginning of spring every year, and flowers enter the peak period of growth, so the watering amount should be gradually increased, and watering should be carried out before noon in early spring; In summer, the temperature is high, the flowers grow vigorously, the transpiration is strong, and the watering amount should be sufficient. Summer watering should be done in the morning and evening. After beginning of autumn, the temperature drops and flowers grow slowly, so water should be less appropriately; In winter, the temperature is low, and many flowers are dormant or semi-dormant, so watering should be controlled.

3. Humidity adjustment:

Indoor humidity should be kept at a certain level, with high temperature and rapid evaporation in summer. Potted flowers placed indoors should be sprayed with water regularly and properly in winter. On the one hand, it can adjust the indoor humidity, on the other hand, it can keep the leaves of plants clean. Used for Clivia, Rhododendron, Plum Blossom, Cyclamen, etc. Proper water spraying in winter can make the branches and leaves beautiful and upright on the one hand and accelerate the expansion and opening of flower buds on the other hand. But for flowering plants, water spraying should be changed to spray to prevent falling flowers or petals from turning black. For fruit-appreciating pyracantha, bergamot, kumquat and winter coral, spraying water can make the fruit bright and clean.

4. Rational fertilization:

Rational fertilization of flowers is to pay attention to timely, appropriate and appropriate fertilization. Timely means applying flowers when needed; Appropriate amount means that the amount of fertilizer should not be too much or too little; Suitable fertilizer refers to the application of suitable fertilizer. Too much nitrogen fertilizer is easy to grow in vain. Too much potassium fertilizer will hinder fertility and affect flowering and fruiting.

Specifically, we should pay attention to the following points:

(1) According to the species of flowers. Different kinds of flowers have different requirements for fertilizers, such as osmanthus and camellia, which like pig manure and avoid human excrement; Rhododendron, camellia, gardenia and other alkaline fertilizers; For flowers that need to be re-cut every year, the application ratio of phosphorus and potassium fertilizer should be increased to facilitate the germination of new branches; Flowers with foliage mainly emphasize nitrogen application; Flowers with large flowers (such as chrysanthemums and dahlias). ) Appropriate amount of compound fertilizer should be applied in flowering period to make all flowers beautiful; For ornamental flowers, fertilizer and water should be properly controlled in flowering period, and sufficient compound fertilizer should be applied in strong fruit period.

② According to the season. In winter, the temperature is low, most flowers are in a state of growth stagnation, and generally no fertilization is applied; Spring and autumn are the peak periods of flower growth, so it is necessary to apply more fertilizer appropriately; In summer, the temperature is high, the water evaporates quickly, the flowers grow vigorously, the concentration of fertilization is low, and the times are more. In addition, the application of organic fertilizer must be fully decomposed, and raw fertilizer cannot be used.

5, plastic trimming:

Reasonable pruning can not only promote the vigorous growth of plants, but also contribute to beauty. Flowers and trees with flowering branches in those years, such as Chinese rose and pomegranate, should be pruned again in the dormant period of early spring to promote more new branches and flowers; Flowers and trees that bloom on biennial branches, such as gardenia, rhododendron, winter jasmine, etc., should generally be lightly cut, as long as the dense branches, residual branches and diseased branches are properly trimmed; Winter is the best time to trim the flowers and trees with the pile head as the ornamental object, such as triangle maple, pool south, banyan and so on. , and all the dense branches, pest branches, long branches and thin branches can be deleted, and other branches can be appropriately shrunk to keep the branches clear and fresh; For wintersweet, plum blossom, winter jasmine, etc. Annual branches can be cut off at a distance of 2 ~ 3 cm from the base after flowering to promote the bud germination of the remaining basal leaves, and more new branches can be taken to ensure annual pregnancy and flowering.

6, pest control:

With the increase of temperature, plant diseases and insect pests are increasing. Common diseases are powdery mildew and bituminous coal disease. Common pests are red spiders, aphids and scale insects. 75% chlorothalonil wettable powder can be sprayed 200 times in the early stage of powdery mildew. Bituminous coal disease can be prevented by spraying stone sulfur mixture. Insects such as aphids and scale insects can be sprayed with 40% omethoate EC 1500 ~ 2000 times.

7, ventilation and outdoor aftercare

Timely ventilation is beneficial to indoor air convection and ensures the normal breathing of plants. In summer, all doors and windows should be opened during the day and the transom should be opened for ventilation at night. But at noon, when the weather is too hot, you should hang curtains on the sunny windows for shade. At noon in winter, windows should be properly ventilated. When the temperature is too low on cloudy or snowy days, doors and windows can be opened less or not.