Japanese Maple Guide

The Basics

Japanese Maples bring a touch of elegance to any garden. They work well as focal points, container plants, bonsais, or colorful backdrops. Whether you collect them or are just looking for a unique accent, we can help you choose the right tree and keep it healthy all year.

In milder climates, most Japanese maples can handle full sun. However, in our low-country area, the strong afternoon sun and high humidity mean these trees need more shade and water to avoid leaf scorch. In the South, red-purple varieties may turn green in the summer heat. This change won’t hurt the tree, but it may be less colorful than you expect. For the brightest colors, plant your maple where it gets full morning sun and stays cool in the afternoon.

Planting in full afternoon sun is strongly discouraged. However, there are a few exceptions if your planting area gets only 2-4 hours of strong afternoon sun, such as the Coral Bark, Bloodgood or the Crimson Queen. In general, the darker the leaves, the more sun your tree can handle. Considering the Japanese maple's mature size when choosing a location is also a must. Even though these trees grow slowly, make sure there's plenty of space for your maple to grow tall and wide without hitting power lines or architectural features, or obstructing sunlight for other trees and plants. These trees typically have shallow, compact roots, staying close to the soil surface. Making them generally safe to plant near structures like foundations, walkways, and patios. If you live in an area with heavy clay soil, consider planting them slightly elevated in slightly acidic, well-draining soil rich in organic matter. This will help guard against root rot and disease caused by dense clay.

Characteristics and Varieties

At Southern Marsh Nursery, we carry 15 different varieties. All have different leaf patterns, color palettes, and growth habits.

• Leaf Shape: There are two main types of Japanese maples. Upright maples have the classic lobed leaves or “palmate” leaves, referring to their open hand shape. While dissected or laceleaf maples have very fine, lacy or even fern-like leaves.

• Color Palette: Japanese maples come in many colors, from green to red to purple. In the fall, their leaves can turn bright orange, yellow, deep purple, or even greenish-gold.

• Growth Habits: Some Japanese maples grow up to 20 feet tall, while dwarf types are great for containers and bonsais. Upright varieties like Shishigashira or Coral Bark Maple grow tall, while others like Crimson Queen form a bushy mound. Weeping types, such as the waterfall maple, have a graceful, cascading shape.

• Container Maples: Slow-growing dwarf types like Red Dragon or Orangeola are just the right size for containers. Their finely cut leaves turn bright red and orange in the fall. Over 10 years, they can grow 4-6 feet tall and 5-8 feet wide.

• Standalone Maples: If you want a standout tree for your garden, try the Coral Bark maple. It is known for its red-coral bark and colorful fall leaves. This tree can grow up to 25 feet tall and 20 feet wide. Even after it loses its leaves in winter, the bright red bark stays eye-catching.

  Caring for your Maple

Japanese Maples do best in conditions similar to their natural home, which are forested areas with protection from wind and strong afternoon sun. Most grow well in Zones 5-9. To keep their leaf colors bright and healthy, plant them where they get a good mix of light and shade.

These trees thrive in any well-drained, consistently moist soil—except highly alkaline soil. Because these maples have sensitivity to extreme heat and sunlight, summer planting may not be the best choice. Planting in early spring or fall is ideal for most Japanese maples.

• Water: Give your maple plenty of water when you plant it, and keep watering regularly. Once the roots are established, the tree can handle short dry spells, but avoid overwatering and water more during droughts. Use mulch to protect the roots from heat and cold, and to help the soil stay moist. Keep mulch a few inches away from the trunk to prevent damage or disease.

• Fertilizer: In spring, use a low-nitrogen fertilizer, ideally N-15 or lower. Don’t fertilize after May, as this can affect fall color and winter strength. Wait until the second growing season to fertilize new maples, after their roots are established.

• Pruning: When pruning a Japanese maple, make careful cuts to highlight its natural shape and improve airflow. Thin out small twigs and crossing branches instead of cutting back large sections. The best time for major pruning is late winter when the tree is dormant. You can remove dead, damaged, or diseased wood at any time.