1. Desert roses are propagated mainly by sowing and cutting. It is best to sow in spring and adopt the method of sowing on demand, which is convenient for post-seedling management. Before sowing, the substrate must be disinfected. After emergence, pay attention to the substrate in the seeding tray not to be too wet, otherwise the roots may rot, resulting in a large number of seedlings dying. Cutting is better in the vigorous growth season. Cut the branches into about 10 cm, and soak the lower ends in water to dilute the mucus at the incision to prevent the cementation from affecting the hair roots. It can be inserted into the sand bed or directly into the sterilized culture medium, and can take root in about 15~30 days. When propagating, it is suggested to propagate by sowing, so that the root system of the plant will naturally expand and form a good plant shape. Cutting seedlings can't, and it will greatly reduce the ornamental value.
2. In addition, in the cultivation, the branches of desert rose are easy to grow white, which affects the beauty of the plant shape, and the plant shape can be changed by grafting. At a certain height of the plant, all the branches are cut off according to a certain shape, and then the upper ends of the cut branches are grafted by splitting. The grafted plants are beautiful in shape, and the flowers are compact and ornamental after flowering.
Third, desert roses are relatively drought-resistant, so don't water them too much each time. Too much water is easy to cause root rot, and the branches are too long, so pruning is more troublesome. When it is hot in summer, you can water it according to the soil conditions. Generally, water is poured once every two or three days, and no water can be accumulated in the basin. In winter, the temperature drops, and desert roses also enter semi-dormancy. At this time, it is necessary to properly control watering and pay attention to keeping the soil dry, and water it once a week. Proper drought is very beneficial to the growth of desert roses. In winter, desert roses go into dormancy, and their leaves will gradually fall off. This is a normal defoliation, so there is no need to be nervous about it.
Fourth, desert roses prefer phosphorus and potassium fertilizers, which are usually supplemented once a month or so. In summer, there should be enough fertilizer and water in the vigorous growth period, so that flowers can flourish and be bright. In addition, combined with changing the pot once a year, some long-term base fertilizers, such as rotten bean cakes and bone meal, can be appropriately applied in the pot. Desert roses prefer phosphorus and potassium fertilizers, which are usually supplemented once a month or so. In summer, there should be enough fertilizer and water in the vigorous growth period, so that flowers can flourish and be bright. In addition, combined with changing the pot once a year, some long-term base fertilizers, such as rotten bean cakes and bone meal, can be appropriately applied in the pot.
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Pruning desert roses is also very important. If you don't pay attention to the usual pruning and let it grow in vain, it is easy to lose its ornamental value. After flowering, it is the best time to prune, and you can choose according to your personal preference. Note: The more branches, the more flowers. If you want to get more flowers, you must try to keep more ramets.
Matters needing attention in breeding desert roses
1, the desert rose leaf spot is serious, which can cause a large number of leaves to fall off in severe cases. It can be controlled with 500 times solution of 25% carbendazim wettable powder and 50% thiophanate 1000 times solution.
2. The main pest of desert roses is scale insects. In severe cases, all the leaves will fall off, the growing points of plants will be necrotic, and even the plants will die. Pay attention to the observation of cultivation at home and wipe it with a cotton swab as soon as it is found. You can also spray 1000~2000 times of 40% omethoate EC or 1000 times of 50% chlorpyrifos EC 1~2 times during spawning and incubation. Attention should be paid to drug safety in pest control.
3. Maintenance points: the sunshine is good, the temperature is about 30℃, the soil is watered after drying, the fertilizer is properly applied in spring, summer and rainy seasons, and the soil is dropped in time to change pots.
Habits of desert roses
Desert roses like dry and hot environments. Perennial succulent plants, the plant height can reach 2 meters. I like dry, high temperature, ventilated and sunny environment, and I am resistant to drought but not to water and humidity. I shouldn't water too much every time. Too much water will easily lead to root rot and long branches. Good sunshine environment helps desert roses bloom. Roots hypertrophy into fleshy roots. The stems are stout and the leaves are green.