Main Page
Final Picture
Zelkova serrata Ulmaceae
Japanese Zelkova, Saw-leaf Zelkova zel-KO-va ser-RA-ta
- Broadleaf deciduous tree, 50-60(80) ft [15-18(24) m], vase-shaped, low branched. Bark smooth-gray initially. Leaves simple, alternate, ovate to oblong-ovate, 2.5-5 cm long (on some shoots to 13 cm long), sharply serrate with acuminate teeth, parallel veins, 8-14 vein pairs, dark green and somewhat rough above (similar to a small-leaved elm, and related to Ulmus); fall color is variable and may range from yellow, yellow or orange bronze, orange, red and reddish purple.
- Sun, prefers moist, deep soil, pH adaptable; once established, wind and drought tolerant. Some considered it a good substitute for American elm, for it is resistant to Dutch-elm disease, but generally it has not gained acceptance as a substitute. Relatively slow growing.
- Many cultivars, including:
- Autumn Glow™ ('Glodell') - compact form, 35 ft (11 m) tall with a 25-30 ft (8-9 m) spread, red, purple fall color.
- Green Vase® - 50 ft tall and 40 ft wide (15 x 12 m), vase shaped with upright arching branches, orange fall color, taller and more graceful than Village Green, popular.
- 'Halka' - fast growing, 50 ft tall (15 m) and 30 ft (9 m) wide, open, loose, irregular habit, "best American elm mimic" (Sunset), yellow fall color.
- 'Musashino' - upright, narrow, 45 ft tall and only 20 ft wide (14 x 6 m), yellow fall color.
- 'Variegata' - small, weak growing tree, leaves small, green with a white rim around the margin.
- Village Green™ - 40 ft (12 m) tall and similar width, vase shaped, rounded, dense foliage, rusty-red in fall.
- Wireless®
- low and spreading, 25 ft (7.6 m) tall and 36 ft (11 m) wide, vase form, suitable for under utility lines, red fall color.
- Hardy to USDA Zone 5 Native to Japan
- Oregon State Univ. campus: large tree in front of West International House; smaller trees on Jefferson Way in front of Richardson Hall (Green Vase®).
Main Page
Final Picture