Acer palmatum ‘Red Emperor’, also known as the Red Emperor Japanese Maple, is a cultivar prized for its striking, deep burgundy-purple foliage that intensifies to a vibrant scarlet in the autumn. It is a deciduous tree with an upright, rounded habit, typically reaching a height and spread of 5 meters. This cultivar is relatively hardy, tolerates full sun (with some protection from intense afternoon heat), and prefers well-drained, fertile soil.
The ‘Red Emperor’ boasts large, lobed leaves that emerge a deep burgundy-purple in spring and retain this rich color throughout the summer. In autumn, the leaves transform into brilliant shades of scarlet, orange, and yellow.
Size and Shape:
It is a medium-sized tree, typically growing to 5 meters in height and width, with an upright, rounded crown.
Hardiness:
It is considered a hardy cultivar, tolerating a range of conditions, but it benefits from protection from harsh, drying winds.
Growth Habit:
It has a neat, upright growth habit, making it suitable for various landscape applications.
Sunlight:
While it can tolerate full sun, especially in cooler climates, it thrives in partial shade, particularly in hotter regions where it can benefit from protection from intense afternoon sun.
Dig a hole twice the width of the root ball and just as deep. Amend the soil with compost and ensure the top of the root ball is level with the surrounding soil.
Watering:
Water regularly, especially during dry periods, to keep the soil consistently moist but not waterlogged.
Mulching:
Apply a layer of organic mulch around the base of the tree to help retain moisture and regulate soil temperature.
Pruning:
Pruning is generally not necessary, but you can remove any dead or crossing branches in late winter.
Pests and Diseases:
Monitor for common maple pests and diseases, and take appropriate action if necessary.
Location:
‘Red Emperor’ is a versatile tree suitable for various locations, including specimen planting, mixed borders, patios, courtyards, and as part of a woodland garden.
