Acer Palmatum 'Emperor One' (upright)
Acer Palmatum 'Emperor One' (upright)
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Acer Palmatum 'Emperor One' (Emperor One Japanese Maple) is a stunning deciduous tree known for its rich burgundy foliage and elegant upright growth habit. Emerging as deep red in spring, the leaves retain their vibrant colour throughout summer before turning a brilliant crimson in autumn. This variety is highly valued for its striking seasonal changes and strong adaptability to various garden settings.
Fast-growing and slightly more tolerant of sun than other Japanese maples, Acer Palmatum 'Emperor One' is an excellent choice for feature planting, courtyards, and Japanese-inspired landscapes. It thrives in full sun to partial shade, preferring moist, well-drained soil. Its slightly later bud break helps protect against late spring frosts, making it a reliable option for cooler climates.
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Mature height
4–5 meters
Mature width
3–4 meters
Spacing
3–4 meters
Evergreen/Deciduous
Deciduous
Foliage
Deep red foliage in spring and summer, turning brilliant crimson in autumn
Flowering Period & Fruit Development/Harvest
Small red-purple flowers in spring (September to November), followed by winged seeds in summer
Sun tolerance
Full sun to partial shade; prefers sheltered locations in hotter climates
Maintenance
Low maintenance. Prefers well-drained, moist soil. Minimal pruning required—prune in winter to maintain shape.
Root System
Produces a non-invasive, shallow root system that spreads laterally and is well-behaved near structures when given adequate spacing