SAWLEAF ZELKOVA

Zelkova serrata

FAMILY Ulmaceae

SYNONYMS

ADDITIONAL COMMON NAMES

JAPANESE ELM

KEYAKI

KEAKI

JAPANESE ZELKOVA

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See: all Zelkovaor Champion

GENERAL INFO

This tree is known for its graceful, vase-like shape and attractive bark that peels away in patches to reveal a mosaic of colors. Its leaves are small, serrated, and turn a stunning array of yellow, orange, and red in the fall. It thrives in urban environments, tolerating pollution and compacted soil well. The tree provides ample shade with its broad, spreading canopy, making it a popular choice for streets and parks. Its deep root system helps it remain stable and reduces the likelihood of damage to sidewalks and other infrastructure.
Native range: Eastern AsiaSchoolyard Use: This tree features an elegant, vase-like shape with a wide, spreading canopy that provides ample shade. Its serrated leaves turn vibrant shades of yellow, orange, and red in the fall, making it useful for teaching about seasonal changes and leaf pigmentation. The bark has a distinct, smooth texture that peels away in patches, offering a tactile experience for lessons on tree anatomy. Its small, inconspicuous flowers and fruits can be used to discuss plant reproduction and pollination. This tree’s resilience to urban conditions makes it a practical choice for school environments.

TREE CHARACTERISTICS

Tree Shape: RoundedFoliage Type: DeciduousMaximum Tree Height: 70 feetCanopy Width: 50-65 feetGrowth Rate: ~24-36 in/yearLeaf Arrangement and Leaf Form: Alternate, SimpleLeaf Shape: OvateLeaf color: GreenFall Color: YesFlowers: InconspicuousFruit: Very Small Brown DrupeFruiting time: FallBark Color: Dark Brown, Light Gray or Light Green, SmoothLitter Type: Dry Fruit

SITE CONDITIONS

Recommended Planting Area: Greater than 7'Schoolyard Trees: YesWater Use Rating: MediumSunset Climate Zone: 3 - 21Shade Tolerance: NoUSDA Hardiness Zone: 5, 6, 7, 8, 9Soil Texture: Loam or Sand or ClaySoil pH: Very Acidic to Very AlkalineSalt Tolerance: ModerateWind Resistance: Lowest

CONSIDERATIONS

Branch Strength: MediumRoot Damage Potential: ModeratePotential health issues: No known hazardsBiogenic Emissions: LowDisease and Pest susceptibility: Dutch Elm Disease and Beetle Leaves, Spider Mites, Japanese beetle (Popillia japonica)Disease Resistance and Pest Resistance: Armillaria, Root RotUtility Friendly: NoWCISA Appraisal: Suggested LCANT 24" box, Suggested LCANT 24" box, Group Rating 2, Approx. cross sectional area 2.24 sq. in.

CITE THIS TREE

"SelecTree. UFEI. "Zelkova serrata Tree Record." 1995-2025. Cal Poly State University, San Luis Obispo. Accessed on Jun 26, 2025."
< https://selectree.calpoly.edu/tree-detail/1480 >

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