Zelkova serrata 'Halka'
Halka Japanese Zelkova

 Plant Type:
 Hardiness:
 Deciduous / Evergreen:
 Flowers:
Green (Not ornamentally important)
 Foliage:
Green (Dark green summer foliage); Yellow (Fall foliage)
 Fruit:
Brown (Drupe; not ornamentally important)
 Ultimate Height:
50 feet
 Ultimate Spread:
30 feet
 Light Requirements:
 Soil:
Widely adapted to soils, including those with a high pH; prefers well-drained, moist, fertile soil
 Range:
Cultivated origin
 Diagnostic Characteristics:
Leaves simple, alternate, ovate to oblong-ovate, 1.3-2" long (and longer), sharply serrate with acuminate teeth, dark green and somewhat rough above. Offset (oblique) at leaf base. Bark heavily lenticelled, reddish brown, and cherry-like when young, exfoliating to reveal orange and brown inner bark at maturity.

Additional Information

An excellent shade tree, probably one of the best substitutes for Ulmus americana in form and gracefulness, but slightly smaller. A beautiful wood grain for furniture, etc. Minor susceptibility to various elm diseases and pests, but resistant to Dutch Elm Disease. Considered to be one of the more popular cultivars of Zelkova serrata, although Green Vase and 'Green Village' tend to be better performers. 'Halka' is more open and loose and the fall color is not as great as the two aforementioned variants.

When Zelkova serrata 'Halka' has been observed flowering or fruiting at Purdue University

Flowering

JanFebMarAprMayJunJulAugSepOctNovDec

Fruiting

JanFebMarAprMayJunJulAugSepOctNovDec

9 Zelkova serrata 'Halka' found

Building Map...

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= Heritage plant = Memorial plant
Number Accession ID Location
1ORIG_1044*ASTONE
2ORIG_1378*ASC
3ORIG_1362*ASC
4ORIG_1363*ASC
5ORIG_1042*ASTONE
6ORIG_1043*ASTONE
7ORIG_1040*ASTONE
8ORIG_1041*ASTONE
9ORIG_1377*ASC

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