The choice of flowerpot does not need to be very fancy, pervious, ventilated common mud basin is OK. Before using the new clay basin, soak it with water, and then use it. For the newly cut Xiaomai, choose a small flowerpot of about 15cm, for the 1-2-year-old rose seedlings, choose a flowerpot of 18-20cm, and gradually increase according to the size of the plants.
Rose like a bit of wet soil, afraid of drought or water, so we must ensure loose soil, good drainage, and a certain degree of water and fertilizer.
The most suitable growth temperature of rose is 18 ~ 20 ℃, so in April ~ May and September ~ October every year, the flowers are large and colorful. With the increase of temperature, when the temperature is stable at about 30 ℃, the flowers are small in color, light in taste, low in ornamental value, and vulnerable to diseases and insect pests.
In the environment of high or low temperature, rose flowers enter into the dormancy state, which may cause the phenomenon of falling leaves, so there is no need to worry about it.
Rose is a sun loving plant, which needs sufficient sunshine for its growth. The sunshine time of every day should not be less than 5-6 hours, otherwise, the branches and leaves will be thin and weak, and the branches will grow in vain. General potted rose maintenance, put it in sunny place, summer shade, cooling can.
Spring is the season when rose flowers sprout and grow branches. The water supply is very important. In March, the new leaves grow and water once every two days in the morning; in April, the flower buds gradually form and water once a day; in May, the flowers enter the flowering stage, water twice a day, generally once around 8 a.m., and make up water according to the dry and wet conditions of the basin soil at about 4 p.m.
Other seasons are watered according to the principle of "no drying, no watering, no watering". In summer, when the weather is hot, water can be sprayed properly to cool down.
The fertilizer should be applied thinly and frequently.
Before sprouting in spring, apply fertilizer once, and select rotten human excrement, bean cake, etc. When it is in bud, add a light liquid fertilizer. After summer flowers wither, apply a mature liquid fertilizer to promote autumn flowers. In winter, a small amount of organic fertilizer was applied to the roots to enhance the disease resistance of the plants.
1. Antifreeze. The cold resistance of rose flower is very strong, it can bear - 10 ℃ low temperature. Generally speaking, the South can be placed directly under the eaves facing south for winter, and the North potted rose can be moved to the indoor ventilation place when the temperature drops to 10 ℃. It should be noted that, after the flower withers in October, do not prune, apply a rotten phosphate fertilizer, promote the branches to be strong and full, and enhance the cold resistance. In addition, when the temperature is very low in winter, it can be properly watered when it is slightly warm to avoid the death of plants due to dry freezing.
2. Trim. When the new branches of the rose grow to 15-20cm, it is necessary to cut off about 3cm of the top to promote the formation of branches. When the side branches grow to a certain extent, they can also be plucked, repeatedly, the rose plant type is plump, with more flowers.
3. Upper basin. The potted roses at home are all related to the problem of basin changing and basin loading. The basin change is generally carried out before germination in early spring. A part of new soil is replaced, watered and placed in a cool place. After a week, it is transferred to a sunny place for maintenance.
4. Pest control. When the environment is not well ventilated and the light is not enough, rose flowers are easy to be disturbed by diseases and insect pests, such as aphids, powdery mildew, black spot, etc. in case of diseases and insect pests, spray chemicals in time to avoid affecting flowering.
