[Edit this paragraph] Cultivation, propagation, cultivation and management The original stone flower seedlings are difficult to maintain, and they like the climate of warm winter and cool summer. When new spherical leaves grow from March to April every year, the old spherical leaves gradually wither and the flowers shrink. In summer, the new spherical Harrison grows thicker and thicker, and always keeps two spherical leaves. During the growth period, you need to water more, but it should not be too wet, which is easy to grow moss and affect the normal growth of spherical leaves. At the same time, apply fertilizer 1 time every half month, but the fertilizer solution shall not pollute the spherical leaves. Fertilization is suspended after flowering in autumn. Maintenance in sunny places in winter. In case of low temperature or lunar shadow, the spherical leaves grow badly and will gradually shrink. Potted original stone flowers have few and shallow roots, and colored pebbles can be placed around them, which not only plays a supporting role, but also increases the ornamental effect. I like a warm, dry and sunny environment. Fear of low temperature, avoid strong light and loose neutral sandy loam. The temperature in winter shall not be lower than 12℃. Potting the original stone flower, because the root is deep, you should use a tube basin. The soil in the basin is sandy soil, rich in calcium and well drained. Insert the wooden stick into the pit, the depth is half that of the seedlings, plant the seedlings in it, and fully wet the soil by watering. Watering is the most common work in daily management. It is closely related to plant growth, cultivation substrates and utensils, weather conditions and seasonal changes. In the period of good growth, we should fully consider the growth needs of plants and water more; On the contrary, there is less water. Stop watering on cloudy or rainy days. Planting containers with less watering times need more raw stone flowers; On the contrary, it should be reduced accordingly. Those who grow well can be watered more, and those who are injured can be watered less or not. In addition, water can be sprayed on plants in peak season, but it is forbidden to spray water on flowering plants or plants with wounds. In short, we should master it flexibly according to the specific situation. Spring grows vigorously, and water supply should be sufficient. After flowering in autumn, watering should be gradually reduced, and watering should be strictly controlled in winter to keep the basin soil dry. Judging from the seasonal changes, plants grow vigorously in spring, the temperature becomes higher, the light is enhanced, and the water demand is correspondingly larger. When the temperature rises to about 30℃, it is necessary to open the window for ventilation and lower the room temperature. With the circulation of air, water evaporation increases, and the amount and frequency of watering should be gradually increased. The temperature is getting higher and higher in summer, and the raw stone flowers are gradually entering a dormant state, so watering must be controlled. In the rainy season with high temperature and high relative humidity, it is basically necessary to stop watering and let the plants fully sleep. If you water blindly at this time, you may die soon. In autumn, the temperature gradually decreases, and the temperature difference between day and night increases accordingly, and the raw stone flowers slowly resume growth. At this time, properly increasing the number and frequency of watering can maintain good growth. Winter is a special season. As far as the north is concerned, the room temperature varies greatly due to different indoor heating conditions. So watering depends on room temperature and lighting conditions. If the room temperature can reach 15-28℃, it can be managed normally and watered properly. The lower the room temperature, the more water to be controlled. If the room temperature is only about 9℃, basically stop watering to increase the cold resistance of plants. The specific time of watering: the growing season should be in the morning and the winter should be at noon on a sunny day. Plants exposed to the scorching sun should not be watered at noon. The growth of raw stone flowers has a process of peeling and splitting. Usually in late winter and early spring, plants gradually crack, and one or two or three new plants grow in the cracks, while the original plants gradually wither and are replaced by new plants. This process of replacing old plants with new plants is the process of peeling, growth and division and reproduction. During the whole process, it is forbidden to spray water on plants to prevent infection. Like sunshine, the growth temperature is 20 ~ 24℃, which can be cultivated on well-ventilated balconies and windowsills. In summer, spreading a layer of pebbles on the surface of basin soil is beneficial to the growth of its root system. The growth period of Quercus plants is from March to May. After June, when the temperature rises, it will enter a dormant state, and when the temperature is lower than 8℃, it will also enter a dormant state. In winter, it should be maintained indoors above 15℃. If the room temperature is low, it can be placed in a closed fish tank in the sunny place indoors. Fertilize every half month 1 time, but the fertilizer solution shall not pollute the spherical leaves. Fertilization is suspended after flowering in autumn. Leaf spot and leaf rot mainly occur, and 600 times of 65% zineb wettable powder can be sprayed. Insect pests do great harm to ants and root-knot nematodes, so soil replacement method is adopted to reduce the harm of nematodes. To prevent ants, you can use pots to protect them from water, so that ants can't climb on the delicate and juicy spherical leaves. Potted original stone flowers have few and shallow roots, and colored pebbles can be placed around them, which not only plays a supporting role, but also increases the ornamental effect. The breeding method is usually sowing and breeding. Sowing in April-May, using improved varieties and potted indoors at 22-24℃. Germinate about 7- 10 days after sowing. The seedlings of Quercus stone are only the size of soybeans, and grow slowly, so management must be cautious. It takes 2-3 years for seedlings to bloom. When spring begins to grow, the original old plants gradually shrink and are cracked by the newly grown plants. At this time, it is necessary to reduce watering, keep the pot soil slightly dry, and avoid spraying water directly on plants to prevent the wound infection from causing decay. After entering the summer, move to the indoor semi-light place to avoid direct glare. At the same time, open the window in time to cool down, control watering and let it spend the summer safely. After autumn, it is necessary to gradually increase the amount of watering and apply a small amount of compound fertilizer to facilitate the flowering of pregnant buds. After the flowers wither, we should gradually reduce watering, strictly control watering in winter, and keep the basin soil dry. During wintering, it should be placed in a sunny place, and the room temperature can be kept above 15 degrees, so it can be safely wintered, but it is best to put it in a room above 15 degrees. The root system of raw stone flower is developed, so deep pot cultivation should be chosen. Potted soil can be made up of 4 parts humus soil and 3 parts calcareous materials (shell powder, eggshell powder, old gray wall pieces, etc.). ) and 3 portions of river sand. Planting should not be too deep, otherwise it will easily lead to rot. The propagation of raw stone flowers can be accomplished by sowing and dividing plants. Family propagation of protolith flowers can be directly planted with young plants extracted from the gaps of old plants because of the small number needed. The method is simple and feasible, and can shorten the breeding time. Sowing and ramet propagation. As soon as the seeds are ripe in late autumn, they can be put away and planted in pots, or they can be planted again in the middle of May of the following year. Small seeds should be planted in indoor potted plants. After sowing, cover the soil thinly. When the basin soil is dry, the soaking basin method should be adopted. Don't water directly, so as not to wash away the seeds. Sowing temperature is 22-24℃. Seedling can emerge about half a month after sowing, and the seedlings will gradually see the light after emergence. Every spring, the original stone flower will grow new fleshy leaves from the gap in the middle, break the old leaves and die with atrophy. New leaves grow rapidly, shrink and crack in summer, and 2 ~ 3 young new plants grow from gaps, which can be planted separately. Management points Humidity management likes dry air environment, and rainy days last too long, which is easy to be infected by germs. Afraid of rain, keep the leaves dry at night. The optimum air relative humidity is 40 ~ 60%. The optimum growth temperature for temperature management is 15℃ ~ 32℃, and it will enter a dormant state when the temperature is above 33℃ in summer. Avoid cold cream. The overwintering temperature should be kept above 65438 00℃. In winter, when the temperature drops below 7℃, it will go into hibernation. If the ambient temperature is close to 4℃, it will freeze to death. Summer: 1, strengthen air convection, so that the body temperature can be radiated; 2. Put it in a semi-shady place, or shade it by 50%; 3, give it a proper spray, 2 ~ 3 times a day. Winter: 1, move to a bright indoor place for maintenance; 2, outdoors, you can wrap it in a film for wintering, but every two days when the temperature is high at noon, you should uncover it and let it breathe; In summer, when the light management is kept in semi-shade, or the shade is 50%, the leaf color will be more beautiful. Because the temperature is not very high in spring and autumn, it should be given direct sunlight to help it accumulate nutrients through photosynthesis. In winter, it should be maintained in a bright place indoors. Usually put indoors for maintenance, it should be placed near the southeast doors and windows to receive light. Every other month or one and a half months, it should be moved outdoors for maintenance for two months, otherwise the leaves will grow thin and yellow, and the new branches or petioles will be slender and in a state of collapse. Fertilizer and water management It has strong drought tolerance and can grow under dry environmental conditions, but this does not mean that it is not watered or fertilized; Its roots are afraid of water stains. If there is water in the flowerpot, or watering and fertilizing too frequently, it is easy to cause root rot. The principle of fertilization and watering is "dry at intervals, wet at intervals, dry thoroughly, dry thoroughly without watering, and drenched thoroughly". When fertilizing and watering, avoid wetting plants during the day: spring and autumn: these two seasons are the peak seasons for their growth, and the fertilizer and water management shall be circulated in the order of "Huabao"-clear water-"Huabao"-clear water, and outdoor maintenance shall be carried out at intervals of about 2 ~. If you keep it indoors for 3 ~ 6 days, the interval between sunny days and high temperatures will be shorter, and the interval between rainy days and low temperatures will be longer or without watering. Summer: during the high temperature period in summer, it often enters a dormant state, requiring less fertilizer and water, and even controlling fertilizer and water. Fertilizer and water management shall be circulated in the order of "Huabao"-clean water-clean water-"Huabao"-clean water-clean water. The interval of outdoor maintenance is about 3-5 days, with shorter sunny days or high temperature periods, longer rainy days or low temperature periods or no watering. If you keep it indoors for 4 ~ 7 days, the interval between sunny days and high temperatures is shorter, and the interval between rainy days and low temperatures is longer or you don't water it. The watering time should be arranged in the morning or evening when the temperature is low. Spray plants often, too. Winter: winter dormancy period, mainly to control fertilizer and water. Fertilizer and water management is circulated in the order of "Huabao"-clean water-clean water-"Huabao"-clean water-clean water, with an interval of about 7 ~ 10 day, shorter in sunny days or high temperatures, and longer in rainy days or low temperatures. Try to arrange the watering time at noon on a sunny day with high temperature. Pests and diseases are mainly leaf spot and leaf rot, and 600 times of 65% zineb wettable powder can be sprayed. Insect pests do great harm to ants and root-knot nematodes, so soil replacement method is adopted to reduce the harm of nematodes. To prevent ants, you can use pots to protect them from water, so that ants can't climb on the delicate and juicy spherical leaves. [Edit this paragraph] Gardening stone flowers are small and exquisite. Gems with strange shapes and glittering luster enjoy the reputation of "living gems" internationally, and are suitable for indoor small potted flowers. There are 70-80 species of Lithocarpus, among which Lithocarpus xylocarpa is widely cultivated. L. Eberlanzii amber jade (L. Bella) and so on. The original stone flowers are similar in shape and color to colored pebbles, with a wide variety and rich colors. It is a world-famous small succulent plant, which is often potted for indoor viewing.