WSU Clark County Extension
PNW Plants Searchable, categorized images
              

Seiryu Japanese Maple

Scientific name: Acer palmatum 'Seiryu'
Taxonomy
Family:Aceraceae
Type:Deciduous tree
Native:NO
Plant Requirements
Zone:5 to 8
Sun:Full to partial sun
Moisture:Dry
Plant Characteristics
Height:15 ft
Width:8 ft
Bloom:Spring flowers
Bloom Time:May
Bloom Color:Red
Additional Characteristics
Trees


Fruit

Leaves


Bark
Wildlife value

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

  Morphology:
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.

  Adaptation:
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.

  Pests:
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 (brunc@wsu.edu), (360) 397-6060 5701
Computing and Web Resources, PO Box 6234, Washington State University, Pullman WA 99164-6234