How to manage and prune hibiscus in winter? Latest method explained in detail
The planting area of hibiscus in our country is also very large. When planting hibiscus, we need to focus on management, especially pruning work. And when managing, we should adjust the management methods well according to the changes of the seasons. So now, as time goes on, how should hibiscus be managed and pruned after entering winter? Let's take a look together with the editor below at the winter management and pruning methods for hibiscus!
1. Proper fertilization
Hibiscus likes to grow in soil with sufficient fertility. However, after entering winter, because the temperature drops, the plant's demand for fertilizer nutrients also becomes smaller. Therefore, we should pay attention to controlling the amount of fertilization, and around October we should control fertilization. A thin layer of fine dry fertilizer can be properly scattered on the soil surface. Special attention should be paid to controlling the application amount of nitrogen fertilizer to prevent excessive nitrogen fertilizer from causing excessive vegetative growth of branches and leaves, thereby affecting the dormancy of hibiscus. If the leaves show yellowing, then ferrous sulfate aqueous solution can be properly applied to improve the physical and chemical properties of the soil.
2. Reasonable watering
⟦NL>When hibiscus overwinters, attention should be paid to controlling water well. The soil must not be too wet, so watering must not be excessive. Keeping the soil in a slightly moist state is enough. Usually watering once about a week is enough, and the amount of watering must not be too much. Prevent a low-temperature and high-humidity environment from causing root rot in hibiscus. However, if the air is too dry, it may cause yellowing, drying, and other phenomena in hibiscus leaves, so air humidity should be appropriately increased. Methods such as spraying water around the plant or covering with plastic film can be used to control humidity and provide suitable growth humidity for it.
3. Maintain temperature
In winter, hibiscus will gradually enter the dormant period. During the dormant period, the temperature range should be about 5-15°C. If the temperature exceeds 15°C, then it will affect the dormancy of hibiscus and affect flowering the next year. And if the temperature is lower than 5°C, then the hibiscus plant is also prone to frost damage. Therefore, maintaining temperature is very important. At the same time, when watering, we should also pay attention to the water temperature. The water temperature must not differ too much from the air temperature, otherwise it is easy to cause damage to the hibiscus roots. Therefore, when watering, the water temperature should be kept close to room temperature.
4. Winter pruning
Winter pruning is also very important for the growth of hibiscus. It can adjust the tree shape of hibiscus, allow it to form a reasonable tree structure, and avoid excessive consumption of too many nutrients by vegetative growth. Therefore, during the period from when hibiscus formally overwinters to when it resumes growth in spring, it should be heavily pruned at least once. Usually, keeping the branches at about 10cm is enough, and the remaining parts should be cut short. Then, after the branches sprout, keep two side branches and cut off excess small branches. If the hibiscus plant has a relatively long growth life, then extremely heavy cutting back can be carried out. That is, keep about 3 buds at the base of each side branch, and then cut off all the upper buds. However, attention should be paid to the inner and outer orientation of the retained buds so as to control the growth direction of the branches the next year.
The above is a brief introduction to the winter management and pruning of hibiscus. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!