Acer palmatum 'Emperor I' is a stunning Japanese maple variety prized for its exquisite deep-red foliage, which turns vibrant crimson in autumn. More upright and vigorous than many other cultivars, ‘Emperor I’ is ideal for creating a focal point in landscapes. Its leaves emerge slightly later in spring, reducing the risk of frost damage. This versatile tree is perfect for smaller gardens, patios, or as a specimen planting. Easy to maintain and highly adaptable, it provides year-round interest with its elegant branching and seasonal color changes.

- Light: Full sun to partial shade
- Water need: Moderate, moist but well-drained soil
- Growth rate: Moderate
- Mature size (HxW): 15–20 ft x 10–15 ft
- Habit: Upright, rounded canopy
- Bloom/interest: Red foliage deepens to fiery crimson in fall
- Hardiness zone: 5–8
- Soil tolerance: Prefers slightly acidic, well-drained soil
- Drought/heat tolerance: Moderate once established