Ash is a precious tree species. As a bonsai, it is suitable for decorating gardens and courtyards. High ornamental value and strong adaptability. Daily maintenance is not only conducive to plant growth, but also conducive to the shaping of bonsai. Let's talk about what should be paid attention to in the maintenance of ash bonsai and how to do it.

First, the growth environment

1. temperature

Cold and high temperature resistance, the high temperature limit is as high as 43℃, and it can tolerate the low temperature of-265438 0℃. There is no need to cool down in summer and indoor activities in winter. However, pay attention to the water temperature. When the temperature is high in summer, if the temperature of water used is relatively low, it is easy to cause the leaves to shrink, and the same is true in winter. Water it when the temperature is almost the same.

Step 2: Moisture

Make sure you don't do it or water it, as long as the soil is slightly wet. You can pour water into the basin to a height close to the edge of the basin, and it is better to pour water after the surface water seeps down. It is best to water at eight or nine in the morning and try not to do it at night. Pay attention to remove stagnant water in rainy days.

Water should be poured every 3 ~ 4 days in spring and autumn, once every morning and evening in summer when it is cool, and the water quantity should be increased, and once a week in winter. Because the drainage and permeability of different pots are different, the actual operation depends on the dryness of the pot soil to determine the time and amount of watering. River water, well water and rain water are better, so is rice washing water, which can not pollute the water quality.

lamplight

It likes light and is more resistant to shade. It grows better when there is plenty of sunshine. When the new branches are thick and purple, it means that the water, fertilizer and light of the plant are sufficient, otherwise it is insufficient.

4. Pots and soil

Potted soil can be halved after molding, and then filled with cinder.

fertilize the soil or land

The amount of fertilizer does not need too much. Before the plant grows into a tree, it needs to be applied with thin fertilizer frequently, once every 5 to 7 days. In the sunny afternoon of spring and summer, it can stop fertilizing after it grows into a tree.

Second, maintenance

1. Pruning and pot shaping

In order to keep the shape of bonsai, plants need to be trimmed properly. In the growing season of spring and autumn, we can properly pick the new buds of ash and cut off the long branches to keep the shape of potted plants. In late August, after a short dormancy period, the new buds of ash will also be picked.

Newly bought plants should be remolded, mainly by pruning stumps to promote the plants to form shapes, cutting off unnecessary roots and branches, paying attention to treating wounds after pruning, applying healing agents to promote wound healing and avoid infection with diseases and insect pests. In order to maintain the shape of potted plants, attention should be paid to thinning the branches and changing frog legs into hanging branches.

Replace flowerpots and soil.

When the plant is still in its infancy, it is necessary to change the pot soil according to the size of the plant. Generally, the pot soil is changed once every 2 to 3 years for adult plants.

Third, pests and diseases.

Disease resistance is very strong, but if the potted soil is alkaline or watered with tap water for a long time, it will cause yellowing disease, so preventive measures should be taken, and the roots should be watered with 400 times diluted ferrous sulfate 1 time every week, 3 ~ 5 times in total.

The common pest is flower thrips, once found, it can be controlled by pesticides such as 800 times killing liquid. Bactrocera yessoensis and Cercospora rubra often appear in trees with poor growth, mostly in early summer and autumn, and 20% diluted pyrethroid can be sprayed 2000 times to kill pests.