Japanese maple
Acer palmatum
Bloodgood
About this plant
Acer palmatum, commonly known as Japanese maple, is a small deciduous tree admired for its delicate, deeply lobed leaves that turn brilliant shades of red, orange, or yellow in autumn. It is widely used as an ornamental tree in gardens and landscapes, prized for its graceful shape and colorful foliage. It grows slowly and can be shaped by pruning, making it popular for bonsai as well.
Taxonomy
- Genus
- Acer
- Family
- Sapindaceae
- Higher classification
- Order Sapindales
- Plant type
- Tree
- Lifespan
- Perennial
Origin & Distribution
- Native region
- Japan, Korea, China
- Distribution
- Native to Japan, Korea, China; widely cultivated in temperate regions worldwide.
Care
- Light preference
- Partial shade
- Suitable locations
- Outdoor, Balcony, Greenhouse
- Preferred window facing
- East-facing, North-facing, Northeast-facing
- Watering frequency
- Moderate
- Watering interval
- 3–7 days
- Humidity
- Normal
- Minimum
- -20 °C
- Maximum
- 30 °C
- Optimal
- 15-25 °C
- USDA hardiness zones
- 5-8
- Soil pH
- 5.5-6.5 (slightly acidic to neutral)
- Soil type
- well-draining loam, rich in organic matter
Watering. Keep soil consistently moist but not soggy. Water more frequently during hot, dry weather and reduce watering in cooler months.
Fertilizing. Apply a balanced, slow-release fertilizer in early spring before new growth starts. Avoid heavy fertilizing, as it can cause excessive leaf growth at the expense of tree health.
Japanese maples are moderately easy to care for but need protection from strong sun and wind. They prefer well-draining soil and regular watering without waterlogging. Watch for leaf scorch if conditions are too dry or sunny, and prune lightly to maintain shape.
Propagation
- Propagation methods
- Seeds, Cuttings, Grafting
- Care difficulty
- Medium
Ornamental features
- Flowering
- Yes
- Flowering period
- spring
Delicate, palmate leaves with vibrant fall colors; elegant branching form; small red flowers in spring.
Toxicity & Safety
- Toxic to humans
- Non-toxic
- Toxic to pets
- Non-toxic
- Weed potential
- Not considered a weed
Non-toxic to humans and pets; safe to have around children and animals.
Allergy information
- Allergy risk
- Low
- Allergy triggers
- Pollen, Sap or latex
- Pollen level
- Low
Acer palmatum, or Japanese maple, produces little airborne pollen and is unlikely to cause allergies. People sensitive to tree pollen generally have a low risk with this plant. To reduce any minor exposure, avoid handling the tree during its flowering period if you are highly sensitive.
Common problems
Leaf scorch from too much sun or dry conditions, root rot from overwatering, and occasional aphid infestations.
Uses
Primarily ornamental, used in gardens, parks, and bonsai art for its attractive foliage and form.
Notes
Prune in late winter or early spring to shape and remove dead branches. Protect from strong afternoon sun and harsh winds. Repot bonsai forms every 2-3 years.