Noted for its unusual upright habit within the Laceleaf Japanese Maples, award-winning Acer palmatum 'Seiryu' is a medium-sized deciduous shrub with small, deeply cut, dissected leaves of great beauty. The delicate spring foliage emerges lime-green with reddish tips, matures to pale green with reddish edges in summer, before turning spectacular gold, pale yellow and a suffusion of orange and crimson in fall. Strong but not overly vigorous, this upright maple tree enjoys a broadly columnar habit and stands out in the landscape. 'Seiryu' means 'Blue-Green Dragon'.
- Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society for its outstanding qualities
- Grows up to 10-15 ft. tall (300-450 cm) and 8-12 ft. wide (240-360 cm).
- A full sun or part shade lover, this plant is easily grown in moist, organically rich, slightly acidic, well-drained soils. Mulch helps retain soil moisture and keep roots cool. Best leaf color in partial shade, although full sun can be tolerated. Leaf scorch can be caused by lack of soil moisture or excessive exposure.
- Perfect as specimen plant in cottage gardens, city gardens or for rock gardens and containers.
- Low maintenance, this plant needs little pruning. If pruning is necessary, prune during the dormant season and avoid pruning in spring when the sap is running. Fertilize in spring before the leaves emerge.
- May be affected by horse chestnut scale, aphids, verticillium wilt.
- Propagate by grafting or softwood cuttings