Acer palmatum ‘Omure yama’

('Omure yama', Japanese Maple)


Hardiness Zones:

 5a  5b  6a  6b  7a  7b  8a  8b  9a

Quick Overview:

?Omure yama’ is a weeping form of Japanese maple. It is not part of the dissectum group (generally low-spreading shrubs). It typically grows in an upright, rounded, cascading form to 8-10′ tall over the first ten years, eventually maturing to 10-15′ tall and as wide. Young plants are mostly upright. They develop a cascading form with maturity as the slender branches become pendulous near the tips. Palmate leaves (to 3" long) are deeply cut into seven lanceolate lobes each having toothed margins and pointed tips. Foliage emerges light green with orange tinted margins in spring, matures to a rich green in summer and finally turns bright red, orange and gold in fall. Small reddish flowers in spring are somewhat attractive on close inspection, but are not showy from a distance.

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Easily grown in moist, organically rich, slightly acidic, well-drained soils in full sun to part shade. Grows well in sandy loams. May be grown in full sun in the northern parts of its growing range, but prefers some part afternoon shade in the southern parts of its growing range. New foliage may scorch in full sun locations in hot summers areas, particularly if soils are not kept consistently moist. Mulch helps retain soil moisture and keep roots cool. Avoid hot and dry sites. Site in locations protected from strong winds. Pruning is best kept to a minimum, but if needed should be done in late fall to mid winter. Spring or summer pruning often results in significant bleeding.

Additional information

Common Name

'Omure yama', Japanese Maple

Botanical Name

Acer palmatum 'Omure yama'


30 gallon

Evergreen or Deciduous


Hardiness Zone

5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a

Growth Rate


Light Requirements

Part-shade, Part-sun, Sun


10 to 15 ft.


10 to 15 ft.

Soil Condition


Water Needs




Foliage Color

bright green

Deer Resistant


Fall Color

reds and yellows

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