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Japanese Zelkova

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Zelkova serrata (Thunb.) Makino · Keyaki · Elm family

Japanese zelkova needs room to become a large tree. Explore identification, native status, flowering, and basic care, then follow the companion sheets for climate, environment, ecology, and growing guidance.

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Japanese zelkova leaves with toothed margins and prominent side veins.
Japanese zelkova foliage; side veins end at the toothed leaf margin. Photograph: KENPEI, original source, CC BY-SA 3.0. Uncropped; resized proportionally for display.

At a glance

Scientific name
Zelkova serrata (Thunb.) Makino [1]
Plant type
Deciduous shade tree; Ulmaceae [2]
Mature size
Typically 50–80 ft tall; crown may become similarly broad. Check the plant label. [2, 3]
Light and water
Full sun; moist soil with good drainage. Some drought tolerance after establishment. [2]
Cold hardiness
USDA zones 5–8 [2, 3]
Native to the United States
No [1]
Native to W. Lafayette
No; native to eastern Asia [1]
Invasive status
Local ecological status not established. Not on Indiana’s 44-species Terrestrial Plant Rule list; escape concerns exist elsewhere. [4, 5]
Self seeding
Yes, possible; local frequency is unmeasured. [5]
Edibility
Grow as an ornamental. No edible part is recommended in this package.
County occurrence
No verified Tippecanoe County wild record is claimed.
Main siting caution
Allow for a broad crown and roots; avoid overhead utilities and cramped planting spaces.

Identification

Look for alternate, simple leaves with toothed edges and veins running toward the teeth. The crown is often vase shaped. Older bark develops a mottled appearance as patches flake away; autumn leaves can turn yellow, orange, or reddish purple. [2, 3]

Use the scientific name when buying. Other zelkovas and true elms require their own profiles; a shared common name does not establish identity.

Small green Japanese zelkova flowers among expanding spring leaves.
Small spring flowers and expanding leaves, Osaka, Japan. Photograph: KENPEI, original source, CC BY-SA 3.0. Uncropped; resized proportionally for display.

Flowering and fruit

The small green flowers appear in spring and are easily overlooked. Small fruits called drupes follow. Flowering is not the tree’s main ornamental feature; foliage, branching form, and bark provide most of its visual interest. Local dates vary with the season. [2, 3]

Sources and evidence

Reviewed 2026-09-23. Source numbers match the Word package. Planting and observation steps are practical adaptations for home landscapes.

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