Spec sheet
- Hardiness
- Hardy to zone 5
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Sizes we grow
Container grown (CG)
- #1
- #6
- #15
- #25
B&B in pot (BBP), by caliper or height
- 1.5 in caliper
- 1.75 in caliper
- 2 in caliper
- 3 to 4 ft tall
- 4 to 5 ft tall
- 5 to 6 ft tall
- 6 to 7 ft tall
About this plant
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