Chinese elm 'Seijū'

Ulmus parvifoli 'Seiju'

Growth Characteristics of Ulmus parvifolia 'Seiju'

Ulmus parvifolia 'Seiju' is a small deciduous broad-leaved tree, primarily used for bonsai. It is characterized by small, thick, and glossy leaves, and the wood itself is very hard and sturdy. This variety has a slow growth rate and can reach a height of approximately 1.5 meters when mature.

Propagation Methods

Ulmus parvifolia 'Seiju' can be propagated mainly through cuttings and grafting. Cuttings are taken in spring or summer; healthy branches are cut, placed in water, or inserted into potting soil, and rooted if appropriate humidity and temperature are maintained. Grafting can be performed in spring or autumn by selecting a suitable rootstock.

Cultivation Methods

This tree prefers sunlight but can also thrive in partial shade. It grows best in well-drained soil, and it is important to avoid overwatering. Water thoroughly when the soil becomes dry, but avoid overwatering. Pruning is performed frequently to shape the tree, primarily during the winter.

Uses in the Garden
'Seijū' is popular as a bonsai for gardens or terraces due to its small size and unique leaf shape. It grows well even in small spaces and can be used as a versatile focal point in the garden.

Important Pests and Control Methods
While the Chinese elm 'Seijū' is relatively resistant to pests and diseases, it can be damaged by insects such as the peach aphid. To prevent and control these pests, use appropriate insecticides regularly or utilize natural predators. Diseases may include leaf spots or stem rot, which can be prevented by maintaining a well-ventilated environment and applying appropriate control measures.

Plant Type
Plant Family	Elm family
Height	12~22m
Spread	60~300cm
Colors	red
Bloom Period	August~September
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-30°C

Elm alata
Ulmus alata

Korean elm 'Frosty'
Ulmus parvifolia 'Frosty'