How to Care for a Small盆栽 of对节白蜡 (Fraxinus hupehensis)
About the care of a small Fraxinus hupehensis盆栽 and its maintenance methods in the green plant and flower sector, let's get to know more about it.
Fraxinus hupehensis is a valuable tree species, suitable for bonsai to decorate gardens and courtyards, with very high ornamental value. It has strong adaptability, and daily maintenance is not only beneficial for plant growth but also for shaping the bonsai. Below are some points to note and how to care for a Fraxinus hupehensis bonsai.
I. Growing Environment
1. Temperature
Fraxinus hupehensis is cold and heat tolerant, with a high temperature tolerance limit of 43℃, and can withstand temperatures as low as -21 degrees Celsius. There's no need to cool down in summer or move it indoors in winter. However, attention should be paid to the temperature of the water used for watering. If the water temperature is too low during high summer temperatures, it can cause leaf wilt, and the same applies in winter. The water temperature should be close to the air temperature before watering.
2. Water
Ensure that the soil is not dry and only water when necessary. The potting soil should be slightly moist. When watering, pour water to near the edge of the pot, and after the surface water has渗透, water again. It's best to water in the morning at 8 or 9 o'clock, and avoid watering at night. Accumulated water should be cleared during rainy days.
Water every 3 to 4 days in spring and autumn, every morning or evening in summer when it's cooler, and increase the amount of water. In winter, water once a week. Since different pots have different drainage and ventilation, the actual watering time and amount should depend on the dryness of the potting soil. River water, well water, and rainwater are preferred, and washing rice water can also be used, but the water quality should not be polluted.
3. Light
Fraxinus hupehensis loves light and is somewhat shade-tolerant. Growth is better in full sunlight, and when new branches are sturdy and new leaves are purplish-red, it indicates that the plant has sufficient water, fertilizer, and light, otherwise, it is insufficient.
4. Pot and Soil
After the bonsai is formed, the potting soil can be halved and then filled with coal slag.
5. Fertilizing
No need for too much fertilizer. Before the plant forms a tree shape, apply thin fertilizer frequently, every 5 to 7 days, choosing a sunny afternoon in spring and summer. After the tree shape is formed, fertilizing can be stopped.
II. Maintenance
1. Pruning and Bonsai Shaping
To maintain the shape of the bonsai, the plant needs to be pruned appropriately. Spring and autumn are the growing seasons, and new buds of Fraxinus hupehensis can be pinched off, and prominent long branches should be cut to maintain the shape of the bonsai. In late August, after a short dormancy period, the new buds of Fraxinus hupehensis should also be pinched off.
Newly purchased plants should be modified, mainly by pruning the trunk to encourage the plant to form a shape, cutting off unnecessary roots and branches, and paying attention to treating wounds after pruning, applying a healing agent to promote wound healing and prevent disease and pest infections. To maintain the shape of the bonsai, pruning should focus on thinning the growing branches and changing the frog leg branches to hanging拐.
2. Repotting
Young plants need to be repotted based on their size, and mature plants generally need to be repotted every 2 to 3 years.
III. Diseases and Pests
Fraxinus hupehensis has very strong disease resistance, but if the potting soil is alkaline or tap water is used for a long time, it can cause chlorosis. Preventive measures should be taken, using a 400-fold dilution of ferrous sulfate solution to water the roots once a week, continuing for 3 to 5 times.
The common pest is the flower thrips. If found, it can be controlled with chemicals such as 800-fold dilution of dichlorvos. Cottony cushion scale and red wax scale often appear on trees with poor growth, usually in early summer and autumn, and can be killed by spraying a 20% cypermethrin solution diluted 2000 times.
The above is a comprehensive explanation of how to care for a small Fraxinus hupehensis盆栽 and its maintenance methods, hoping it can help you.