Acer Palmatum

Japanese Maple

Botanical Name: Acer palmatum
Family: Sapindaceae
Origin: Japan, Korea, China
Plant Type: Deciduous small tree / large shrub

Overview

Acer palmatum is a graceful, layered small tree prized for its finely lobed leaves and brilliant autumn colour (reds, oranges, golds depending on form). Best in morning sun with afternoon shade and shelter from hot winds in SA. Ideal as a feature tree or for courtyards and large pots (dwarf forms), providing four seasons of interest.

Key Features

• Mature Size: 4-8 m H x 4-6 m W
• Growth Rate: 20-40 cm per year under good conditions
• Foliage: Green (species) with striking autumn colour; many cultivars offer red, purple or gold tones
• Flowers: Inconspicuous (spring); winged samaras follow
• Seasonal Interest: Fresh spring flush, lush summer canopy, spectacular autumn colour, elegant winter framework
• Wildlife Value: Canopy and branching structure provide habitat for small birds
• Tolerance: Frost hardy once established; heat/wind sensitive—prefers protection; not drought-tolerant (needs consistent moisture); avoid waterlogging
• Planting Density: Avenue/specimen: 4–6 m apart (species size). Most are used as specimen rather than formal avenues
• Pet Friendly: Non-toxic to cats & dogs. (General caution: any plant material can cause mild tummy upset if eaten.)

Where It Works Best

• Sunlight: Morning sun / part shade (shade from hot afternoon sun)
• Soil: Moist, well-drained, humus-rich loam; mulch to keep roots cool
• Water Needs: Establishment: 2 deep soaks/week for 8–12 weeks. Established: keep evenly moist; deep soak weekly in summer (more in heatwaves); infrequent in winter if dry
• Maintenance: Mulch in spring; avoid heavy pruning (light shape in winter); protect from hot, dry winds
• Lifespan: 30–60+ years in good conditions
• Climate Zones: Suited to temperate SA; avoid frontline coastal exposure
• Soil pH: Acidic–Neutral (may yellow on high-alkaline soils)

Landscape & Design Ideas

• Feature tree for courtyards and entry gardens
• Shade for patios (with afternoon protection)
• Underplant with shade-tolerant groundcovers
• Large containers (dwarf/compact forms)

Why You Will Love It

Elegant form and show-stopping autumn colour with a compact footprint—perfect for adding a refined, seasonal focal point to SA gardens.