What are the key care points for a Chinese elm bonsai?

Chinese elm, also called small-leaf elm, is a deciduous tree that can reach up to 25 m in height. Its crown is generally round, and its bark is gray or brown. When the dry winter season arrives, the leaves of the Chinese elm turn yellow or red, and they do not begin to fall until the new leaves start growing the following spring. The flowering and fruiting period of Chinese elm is generally from August to October.

Chinese elm bonsai

When growing Chinese elm, the main care work involves keeping it moist. In pot cultivation, there is relatively little soil, so the moisture dries out easily. Therefore, the following two methods are often chosen to maintain humidity.

1. Wrap the tree with transparent plastic film to form an enclosed space, but it is worth noting that with this method you need to water frequently to maintain the humidity for the Chinese elm.

2. Place the Chinese elm bonsai on ground that has soil, so that the water in the pot can be fully retained while also absorbing some of the moisture from the soil, which allows the Chinese elm to maintain good humidity. If it is kept through a winter with heating, then be careful to water more.

A brief discussion of the production and care methods for Chinese elm bonsai

Chinese elm is a common variety in bonsai shaping and is also a relatively good variety. Many flower enthusiasts buy Chinese elm bonsai but do not know how to grow them. Although Chinese elm bonsai is easy to grow, the survival rate of its collected wild stumps is not high, especially when cared for on a balcony. Based on years of experience, some flower enthusiasts have summarized some key points for caring for Chinese elm bonsai, hoping to be helpful to fellow flower enthusiasts.

1. Selection of stumps must be strict. The stump material must be fresh; do not take dead, rotten, or rootless ones. Choose as carefully as possible and do not pursue quantity, so as to ensure that every selected stump material can survive.

2. Pre-planting treatment of Chinese elm is very important, especially good care of its wounds and cut surfaces, because its wounds readily bleed a large amount of sap when they contact water. Therefore, after the stump material is trimmed, the cut surfaces and wounds must be trimmed smooth. For large cut surfaces, it is best to trim the bark and xylem into a 45-degree slope. This can both prevent bacterial infection and help the wounds heal as quickly as possible and take root early.

3. After the wounds have been treated, they cannot be potted immediately. They should be placed in a shady place to dry in the shade for a few hours, allowing the wounds to naturally lose water and form a protective film. This can greatly reduce the occurrence of sap flow after the stump material is potted. The biggest shortcoming of all elm species is that they readily bleed and lose sap. If Chinese elm stumps cannot effectively overcome this shortcoming before and after planting, then it is very difficult to ensure the survival of the stump.

4. Some Chinese elm stumps have many holes on them, and many of the holes are also filled with leaf litter soil and weeds, which must be thoroughly cleaned out. The reason is that these debris materials more or less harbor ant colonies or insect eggs. If they are not cleaned up before potting, then when the weather warms later, the ants and insect eggs in the holes will become more active and multiply more, making them difficult to eradicate and causing endless harm. In the end, the stump may be eaten hollow and die.

Chinese elm likes dryness and fears wetness, so it should be planted in an earthenware pot. The soil is best made from yellow sand, pine needle soil, and loess in a ratio of 4:3:3. This kind of soil is both breathable and water-retentive, and it will not become waterlogged. Put several layers of tile pieces at the bottom of the pot, then add a layer of coarse sand. After filling with soil, shake it a few times first, then press it down firmly along the edge of the pot to prevent hollows from forming under the stump roots and affecting root development. After watering thoroughly to settle the roots, cover it with a plastic bag and place it in a relatively fixed location. Do not move it frequently, so as not to loosen the stump roots or break off root buds. Control watering as much as possible and spray water on the branches and trunk more often; the potting soil is best kept on the dry side.

After a new stump survives, do not rush to fertilize. This is an important reason why many people fail at growing stump material; fertilizer should be applied after autumn.

Summary: The above is an introduction to the production and care methods for Chinese elm bonsai. I hope everyone will exchange bonsai-making experience more often.

How to grow Chinese elm bonsai

Many flower enthusiasts buy Chinese elm bonsai but do not know how to grow them. Although Chinese elm bonsai is easy to grow, the survival rate of its collected wild stumps is not high, especially when cared for on a balcony. Based on years of experience, some flower enthusiasts have summarized some key points for caring for Chinese elm bonsai, hoping to be helpful to fellow flower enthusiasts.

1. Selection of stumps must be strict. The stump material must be fresh; do not take dead, rotten, or rootless ones. Choose as carefully as possible and do not pursue quantity, so as to ensure that every selected stump material can survive.

2. Pre-planting treatment of Chinese elm is very important, especially good care of its wounds and cut surfaces, because its wounds readily bleed a large amount of sap when they contact water. Therefore, after the stump material is trimmed, the cut surfaces and wounds must be trimmed smooth. For large cut surfaces, it is best to trim the bark and xylem into a 45-degree slope. This can both prevent bacterial infection and help the wounds heal as quickly as possible and take root early.

3. After the wounds have been treated, they cannot be potted immediately. They should be placed in a shady place to dry in the shade for a few hours, allowing the wounds to naturally lose water and form a protective film. This can greatly reduce the occurrence of sap flow after the stump material is potted. The biggest shortcoming of all elm species is that they readily bleed and lose sap. If Chinese elm stumps cannot effectively overcome this shortcoming before and after planting, then it is very difficult to ensure the survival of the stump.

4. Some Chinese elm stumps have many holes on them, and many of the holes are also filled with leaf litter soil and weeds, which must be thoroughly cleaned out. The reason is that these debris materials more or less harbor ant colonies or insect eggs. If they are not cleaned up before potting, then when the weather warms later, the ants and insect eggs in the holes will become more active and multiply more, making them difficult to eradicate and causing endless harm. In the end, the stump may be eaten hollow and die.

Chinese elm likes dryness and fears wetness, so it should be planted in an earthenware pot. The soil is best made from yellow sand, pine needle soil, and loess in a ratio of 4:3:3. This kind of soil is both breathable and water-retentive, and it will not become waterlogged. Put several layers of tile pieces at the bottom of the pot, then add a layer of coarse sand. After filling with soil, shake it a few times first, then press it down firmly along the edge of the pot to prevent hollows from forming under the stump roots and affecting root development. After watering thoroughly to settle the roots, cover it with a plastic bag and place it in a relatively fixed location. Do not move it frequently, so as not to loosen the stump roots or break off root buds. Control watering as much as possible and spray water on the branches and trunk more often; the potting soil is best kept on the dry side.

After a new stump survives, do not rush to fertilize. This is an important reason why many people fail at growing stump material; fertilizer should be applied after autumn.