Japanese Maple 'Emperor I'
Acer palmatum Wolff EMPEROR 1®The Japanese Maple ‘Emperor I’ (Acer palmatum ‘Emperor I’) is a stunning ornamental tree prized for its bold red foliage, graceful structure, and strong adaptability. Emerging as rich burgundy-red in spring, the leaves maintain vibrant color through summer before transitioning to a dazzling crimson in fall. Its color consistency and tolerance to late frosts make it an excellent alternative to the popular ‘Bloodgood’ variety.
Growing 15–20 feet tall with a similar spread, ‘Emperor I’ forms a rounded canopy that provides shade and architectural beauty. Hardy in USDA Zones 5–8, it thrives in both full sun and partial shade, performing exceptionally well in areas with cooler nights. This variety is known for its vigorous growth, exceptional cold tolerance, and resilience against leaf scorch, making it one of the most dependable Japanese maples for home landscapes.
Whether used as a specimen tree, in mixed borders, or near patios, the Emperor 1 adds a regal touch of color and elegance throughout the year.
Care Instructions
Planting:
Plant in a location with full sun to partial shade and well-drained soil. Avoid windy spots and waterlogged conditions. Space 10–15 feet apart.
Watering:
Water regularly, especially during dry spells. Keep soil evenly moist but not soggy. Deep watering encourages strong root growth.
Pruning:
Prune in late winter or early summer to shape and remove dead or crossing branches. Avoid heavy pruning.
Pest Control:
Generally pest-free. Occasionally inspect for aphids or scale; treat with horticultural oil if necessary.
Soil Tips:
Prefers slightly acidic, loamy soil (pH 5.5–6.5). Add organic compost and mulch around the base to retain moisture and regulate temperature.
