Conservation of crape myrtle stump bonsai in winter

In the late autumn and approaching winter, we should be extra careful about the conservation of crape myrtle stump bonsai, and pay special attention to the weather changes. Especially during the period from the dormancy of crape myrtle to the freezing of the soil. It usually needs to be irrigated with enough frozen water to avoid the adverse effects of drought in winter.

Because enough water has been poured before, and after freezing, there will be a frozen layer on the roots of crape myrtle trees, which can ensure that the roots of crape myrtle trees maintain a constant temperature and avoid frost damage caused by sudden temperature changes in the outside world, so as to improve the anti-freezing effect of crape myrtle trees. At the same time, watering it scientifically and reasonably in winter can also make the tree get sufficient water supply, which is of great significance for prolonging the flowering period in the later stage.

However, for the cold winter, in the maintenance of crape myrtle bonsai, taking anti-freezing and warm measures is the top priority. In addition to the winter irrigation of crape myrtle stump bonsai in advance, we can also take the following measures to improve the effect of keeping warm.

Spraying lime-water mixture

As trees absorb a lot of heat due to sunlight during the clear day, the temperature of crape myrtle trunk will rise quickly, but the temperature at night in winter is often much lower than that during the day, after such a hot and cold environment, the trunk is easy to crack, especially crape myrtle stump bonsai.

In view of this, we can spray lime water on the trunk of trees to avoid cracking. Because the lime water is still white when sprayed on the tree trunk, it will reflect a lot of sunlight on a clear day, avoiding the excessive temperature rise of the tree itself and the excessive temperature difference between day and night, so as to effectively avoid the occurrence of trunk cracking.

However, in order to make the effect of reducing the temperature difference more obvious, and at the same time delay the sprouting and flowering of crape myrtle, and prevent the damage caused by frost in early spring, we can also add some substances such as sulfur, salt, animal and vegetable oils to the lime water. As long as according to a certain proportion of scientific collocation, rational use can be. However, it should be noted that the prepared mixture should not be placed for too long to avoid solidification. It is recommended to mix it well after preparation.

2. Erect a fence to protect against wind and cold

After entering the cold winter, it is necessary for us to set up a fence for crape myrtle bonsai, which is mainly to prevent the cold wind from attacking crape myrtle bonsai, minimize the degree of freezing damage, and even effectively avoid freezing damage. Especially for the newly planted crape myrtle stump bonsai, it can greatly improve its survival rate; for crape myrtle old pile old tree bonsai, it can also play a very good protective effect.

Setting up a fence does not need to be very exquisite, as long as it can achieve the effect of keeping out the wind and keeping out the cold. If it is a single tree, it is recommended to erect fences and supports in the east, west, north and above. Although the method is simple, the strong wind should be taken into account when erecting the fence, so the material for building the bracket must be strong enough.

Third, apply antifreeze

In addition to taking the above measures, we can also apply some antifreeze at the right time. Generally speaking, before the trees are about to enter the dormant period at the end of autumn, a few days before the frost and cold wave, before and after the trees sprout in early spring, when the temperature drops suddenly, when it is overcast and rainy or when the temperature and climate environment turns good, under the above circumstances, antifreeze can often play a better effect of preventing frost and cold.

Antifreeze can effectively improve the disease resistance and cold protection ability of crape myrtle bonsai to a certain extent, especially in the late spring cold period. Timely application of antifreeze in winter can also effectively prevent the invasion of morning and evening frost, which can reduce or avoid the occurrence of frost injury to a great extent, and even if it causes some frost damage, it can quickly return to the normal growth situation of bonsai trees.

Time: 2019-05-30 Click: