WSU Clark County Extension

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Seiryu Japanese Maple

Scientific name: Acer palmatum 'Seiryu'

Type:Deciduous tree
Plant Requirements
Zone:5 to 8
Sun:Full to partial sun
Plant Characteristics
Height:15 ft
Width:8 ft
Bloom:Spring flowers
Bloom Time:May
Bloom Color:Red
Additional Characteristics



Wildlife value

Description Seiryu Japanese Maple is well known for its unique feature of being a lace-leaf cultivar with an upright growth habit.

This deciduous garden tree grows to 10’-15’ in height and 8’ in width. It takes on a vase-shaped appearance, with multiple trunks. In the nursery trade is just about the only lace-leaf cultivar that does not have the more typical weeping/mounding habit. It will quickly grow to its full height thus providing visual accent for years of enjoyment.

Seiryu's spring foliage is a beautiful bright green color. As the leaves un-fold there is a notable splash of red on the tips of the leaves. As the summer progresses the leaves take on a uniform green color. In late summer reddish tones come back followed by golds and light yellows. It is very popular in Europe where it won an Award of Merit by the Royal Horticultural Society.

In cooler regions of the Northwest it can be planted in full sun. Where it is too hot it is best to provide it filtered sun.

Verticillium wilt can be a problem on wet sites. Bacterial canker may burn the branches back if it is planted in a site with poor air circulation.
For assistance, contact Dr. Charles Brun (, (360) 397-6060 5701
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