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Full-Partial Sun
1-2 ft./yr Growth
Safe for Pets
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Premium Potting Mix
Nutrient-rich blend for healthy growth
+ $19
MitoGrow™ Tree and Shrub
+ $39
Emperor Japanese Maple Information
About The Emperor Japanese Maple
Revel in Crimson Foliage With the Emperor Japanese Maple
Bold color meets dependable performance. The Emperor Japanese Maple brings deep crimson foliage that holds its color longer into the season, paired with a tougher constitution than many traditional maples. It’s a standout choice for adding structure and rich tone without demanding constant upkeep.
Growing to a manageable 12–15 feet tall, this variety fits comfortably as a front yard focal point, patio accent, or even a refined street tree. Its naturally upright habit keeps pruning simple, while its cold hardiness and sun tolerance make it a reliable pick in a range of landscapes.
Why You'll Love the Emperor Japanese Maple
- Rich crimson foliage: Deep red leaves that hold their color through spring and summer
- Improved hardiness: More resilient to cold and sun than many Japanese maples
- Manageable size: Reaches 12–15 ft., ideal for smaller yards or defined spaces
- Upright growth habit: Naturally tidy form with minimal pruning needed
- Versatile placement: Works as a specimen tree, street tree, or focal point planting
- Container-friendly when young: Suitable for large patio containers, adding color to decks and entryways
If you want the elegance of a Japanese maple without the fuss, the Emperor delivers steady growth, lasting color, and a structure that holds its own season after season.
Emperor Japanese Maple Details
Mature Height:
12-15 ft.
Mature Width:
12-15 ft.
Sunlight:
Part Sun
Growth Rate:
Moderate
Botanical Name:
Acer palmatum Wolff EMPEROR 1®
Grows Well In Zones:
5-8 outdoors
Does Not Ship To:
AK, AZ, HI, OR
Growing Zones 5-8 Outdoors
(Hardy down to -10° F)
Watering Requirements
Water newly planted trees deeply, generally 2-3 times a week to help their roots establish depending on conditions. Established trees only need a good soaking during dry spells or summer heatwaves, as they rely mostly on natural rainfall. Container trees dry out much faster and should be watered daily or every other day in hot weather until excess water drains from the bottom.
Sunlight Requirements
Thrives in partial shade, preferably morning sun and afternoon shade. They can tolerate full sun in northern climates, but they should be protected from afternoon sun in southern climates.
Humidity Requirements
Japanese maples thrive best in moderate to high humidity, as dry air can cause their delicate foliage to dry out and scorch at the edges.
Pet-Friendly Plant?
Yes, this plant is safe for homes with pets.
What is a Japanese Maple Tree?
Japanese Maple Trees (Acer palmatum) are ornamental deciduous trees native to Japan, Korea, and China, known for their distinctive palmate leaves, elegant form, and exceptional seasonal color. They're widely grown as specimen trees, container plants, and garden focal points.
Where should I plant a Japanese Maple?
Most Japanese Maples do best in a location with morning sun and afternoon shade, especially where summer heat is intense. Coral Bark is notably more sun-tolerant than other varieties and can handle full sun even in warmer zones. All benefit from shelter from harsh winds, which can dry out and damage the foliage.
How do I care for a Japanese Maple in a container?
Container-grown Japanese Maples need consistent watering; the soil should stay evenly moist but never soggy. They'll need repotting every few years as they grow and may require more winter protection than in-ground plantings since roots are more exposed to freezing temperatures. Compact weeping varieties like Red Dragon, Crimson Queen, Tamukeyama, and Waterfall are particularly well-suited to container growing. See how our plant expert Paris pots a large tree in a container.
When do Japanese Maples change color?
Color varies by variety. Red-leafed varieties like Red Dragon, Bloodgood, Crimson Queen, Emperor, and Tamukeyama emerge in spring with deep reds and purples that hold through summer, then turn fiery crimson or scarlet in fall. Coral Bark produces green foliage that shifts to golden yellow in fall, then the coral-red bark becomes the main feature through winter.
All of our plants ship in premium packaging for zero damage on arrival. Here’s what you can expect in your box on arrival:
Your Emperor Japanese Maple
Fully rooted in a nursery pot with soil intact
Custom Protection System
Corner guards, soil stabilizer, and branch sleeves keep it secure
Pre-Watered & Ready
Each plant is watered 24 hours before it is shipped
Care Instructions Card
Includes expert-curated care tips to help your plant thrive far beyond the first 30 days.
Perfect For Gifting
No pricing or packing slips included with gifts! Just the plant and a note.
Additional Resources
- Video: Workshop Tutorial 1
- Video: Workshop Tutorial 2
- Video: Workshop Tutorial 3
- Video: Workshop Tutorial 4
- Japanese Maple Care Guide
- Patio Gardening 101: Growing in Containers
- Gardening 101: How to Dig the Perfect Hole
- Gardening 101: How to Determine Sunlight in Your Garden
- Gardening 101: How to Water Your Garden
Japanese Maple Care Guide
Japanese maple trees are beloved for their stunning foliage, unique shapes, and vibrant colors that change with the seasons. Here’s everything you need to know to successfully grow and care...
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Patio Gardening 101: Growing in Containers
If you’ve ever dreamed of having a lush garden but lack a sprawling backyard, don’t worry—patio gardening is the perfect solution! In this guide, we’ll walk you through the essentials...
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Gardening 101: How to Dig the Perfect Hole
Gardening is a rewarding hobby, but to ensure your plants thrive, it's crucial to know the best time to plant and how to dig the perfect hole. In this guide,...
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Gardening 101: How to Determine Sunlight in Your Garden
Understanding the sunlight in your garden is key to creating a thriving outdoor space. In this article, we'll guide you through simple ways to determine sunlight in your garden, ensuring...
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Gardening 101: How to Water Your Garden
Watering your garden correctly is essential for the health and growth of your plants. This guide will help you understand how to water your garden effectively and establish an ongoing...
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Why Choose The Sill?
Not all Emperor Japanese Maples are created equal
Greenhouse Grown
Not warehouse-held. Hand-picked and cared for by our experts.
Outdoor Ready
Pre-conditioned for outdoor growth.
Hand-Selected
Inspected by experts. Only our best ship out.
30-Day Guarantee
Free replacements if not happy and healthy.