Green Vase Japanese Zelkova
Botanical Name: Zelkova serrata ‘Green Vase’
Alternate Name: Green Vase Zelkova, Japanese Zelkova
The Green Vase Japanese Zelkova (Zelkova serrata ‘Green Vase’) is a moderate growing, medium to large sized deciduous tree. It has a vase-shaped growth habit and open, spreading branches. Zelkova originated in eastern China, Japan, and Taiwan and are prized for their elegant growth pattern, clean foliage, and attractive bark.
The Green Vase Japanese Zelkova is often used as a substitute for the American Elm (Ulmus americana) as it displays good resistance to Dutch Elm disease. This tree grows to a height of 60-80 feet with a spread of 40-50 feet.
This tree’s leaves are oblong to elliptical in shape with coarsely serrated margins. They measure up to 3 inches long. In the fall, the foliage turns a glowing bronzy orange.
The blooms are small, green, and not showy. They develop in March or April. The fruits are oval drupes that ripen in the fall. The bark is smooth and gray and develops an exfoliating habit as the tree matures, revealing bright orange inner bark.
The Green Vase Japanese Zelkova is adaptable and a useful specimen to use as a street tree due to its tolerance of urban pollution, drought (once established), and general hardiness.
Height: 60-80 ft.
Width: 40-50 ft.
Flower Color: Green
Flowering Time: March-April
Fall Color: Orange, Bronze
Features: Bright fall color, adaptable street tree, graceful form
Exposure: Full Sun to Part Sun
Watering: Moderate/Heavy & Regular
Soil: Prefers rich, moist, well-drained soils. Established trees will tolerate some drought.
Growth Rate: Moderate
USDA Zones: 5-8
Uses: Shade tree, street tree, park tree
Similar trees: Ulmus 'New Horizon' (New Horizon Elm), Ulmus ‘Morton’ (Accolade Elm), Ulmus americana 'Princeton' (Princeton Elm), Ulmus x carp. 'Frontier' (Frontier Elm), Ulmus ‘Morton Glossy’ (Triumph Elm), Ulmus x wilsoniana 'Prospector' (Prospector Elm), Zelkova serrata 'Musashino' (Musashino Columnar Zelkova)