Japanese Maple (Acer palmatum)

Japanese Maple

Acer palmatum

Its delicate, deeply lobed leaves catch the autumn light like stained glass. Deciduous ornamental tree.

Prefers dappled sunlight or partial shade; protect from harsh afternoon sun to prevent leaf scorch.
2/week
Moderate
🌱

Plant Needs

☀️
Sunlight Prefers dappled sunlight or partial shade; protect from harsh afternoon sun to prevent leaf scorch.
💧
Watering Requires consistently moist, well-drained soil; do not let the soil dry out completely.
🌡️
Temperature Hardy in temperate climates; needs protection from extreme heat and dry winds.
🔍

Characteristics

  • Leaves: Opposite, deeply palmately lobed with 5-9 pointed lobes, margins serrated, turning vibrant red, orange, or yellow in autumn;
  • Flowers: Small, reddish-purple, borne in pendulous corymbs;
  • Fruit: Paired winged samaras, 1-2 cm long, ripening in late summer to autumn;
  • Bark: Smooth, greenish-gray to light brown, becoming slightly fissured with age.
🛠️

Care Guide

Watering

Water deeply 2-3 times a week during active growth and hot weather.

Fertilization

Apply a balanced, slow-release organic fertilizer just as buds begin to swell.. Feed sparingly, as over-fertilization can diminish autumn color and cause leggy growth.

Compost Tea and Coffee Grounds:Steep aged compost in water to make a gentle tea; occasionally sprinkle a small amount of used coffee grounds around the base to maintain slight soil acidity. Avoid applying too close to the trunk.
Pruning
  • Prune during late autumn or winter dormancy to prevent sap bleeding;
  • Remove dead, diseased, or crossing branches to maintain an open, airy structure;
  • Avoid heavy pruning; focus on enhancing the tree's natural graceful shape.
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: Non-toxic to cats per ASPCA.

Humans: Non-toxic to humans.

📖

Garden Uses & Culture

Culture: In Western landscaping, it is highly prized as a focal point in woodland gardens and modern minimalist landscapes, symbolizing elegance and the fleeting beauty of autumn.

Usage: Widely used as an ornamental specimen tree, in container gardening, and as a classic subject for bonsai cultivation.