Zelkova serrata 'Halka'
Halka Japanese Zelkova

Family:

Ulmaceae (Elm Family) 32

Genus:

Zelkova (Zelkova Keaki) 6

Plant Type:

Tree 569

Growth Forms:

Upright 574

Hardiness:

USDA Zone 5 253

Deciduous / Evergreen:

Deciduous 839

Flower Notes:

Green (Not ornamentally important)

Foliage Notes:

Green (Dark green summer foliage); Yellow (Fall foliage)

Fruit Notes:

Brown (Drupe; not ornamentally important)

Ultimate Height:

50 feet

Ultimate Spread:

30 feet

Fruiting Times:

Light Requirements:

Soil Notes:

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.

Ecological Functions:

Special Characteristics:

Drought Tolerant 289

Pollution Tolerant 217

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.

Plant Photo Gallery

Overall Habit

Bark

Leaf

Winter Interest

Flower Buds

Winter Habit

Bark

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

Flowering

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Fruiting

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9 Zelkova serrata 'Halka' found

Building Map...

= Heritage plant = Memorial plant

Number	Accession ID	Location
1	ORIG_1044*A	STONE
2	ORIG_1378*A	SC
3	ORIG_1362*A	SC
4	ORIG_1363*A	SC
5	ORIG_1042*A	STONE
6	ORIG_1043*A	STONE
7	ORIG_1040*A	STONE
8	ORIG_1041*A	STONE
9	ORIG_1377*A	SC