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European ash tree
Fraxinus excelsior
Fraxinus excelsior is a deciduous shrub or small tree native to Europe, widely used in Korea primarily as a garden or landscaping tree. The following is information regarding the growth characteristics, propagation methods, cultivation methods, garden uses, and major pests and diseases and control methods of the European ash. Growth Characteristics - Growth Rate: The European ash has a rapid growth rate and can reach a height of approximately 20 to 40 meters upon maturity. - Environmental Requirements: It prefers sunny locations and can grow in various soil conditions. However, it thrives best in well-drained, humus-rich soil. - Cold Hardiness: It is resistant to cold, making cultivation possible in most regions of Korea. Propagation Methods - Seeds: It is primarily propagated by seeds. Seeds mature in the autumn and can be planted immediately after harvesting or sown in early spring after refrigeration. - Cuttings: Cuttings using newly grown branches are also possible during the summer. After propagating by cuttings, you must maintain moisture and provide adequate light. Cultivation Method - Planting Season: Autumn or early spring is suitable for planting. - Care: Adequate watering is required in the early stages, but separate watering is not necessary once the tree matures. You can promote healthy growth by supplying fertilizer as needed. Use in Gardens - European Ash is suitable as a large tree in gardens or parks due to its excellent shade-providing and air-purifying effects. It is particularly useful for creating resting areas by providing shade during the summer. Major Pests and Control Methods - Emerald Ash Boar (EAB): One of the biggest threats, Emerald Ash Boar can severely damage the tree. To control it, prompt removal and treatment are required after early detection, and preventive chemical control can also be considered. - Fungal Diseases: Leaf pests caused by fungi can be managed through periodic control. Use antifungal agents if necessary. - Rust and Gray Mold: These are common diseases affecting leaves and branches, and general disease control methods can be applied. Regular observation and preventive control are crucial for effective pest management. When managed in conjunction with maintaining the garden environment, the European Ash can remain in a beautiful and healthy state.
Plant Family
Oleaceae
Height
30∼40m
Colors
green
Bloom Period
April~May
Water Needs
commonly
Exposure
Sunny
Freezing Resistance
-30°C
Ornus ash tree
Fraxinus ornus
Water elm
Fraxinus chiisanensis