Japanese maple

Acer palmatum · Tree/Shrub

A small, slow-growing tree prized for its finely cut leaves and strong autumn color. It suits small gardens and large containers, and needs shelter from harsh afternoon sun and wind.

Japanese maple — Photo: Kurt Stüber, CC BY-SA 3.0 · Wikimedia Commons

💧WaterWeekly, evenly moist (estimated)

☀️LightMorning sun, afternoon shade

🐾PetsGenerally low-risk

Care at a glance

Light: Morning sun, afternoon shade; more shade in hot areas
Water: About 1 in per week; keep evenly moist
Soil: Moist, well-drained, slightly acidic, pH 5.5–6.5
Temperature: Hardy to about −10 °F; late frosts can damage new leaves
Spacing: 10–20 ft from buildings and other trees
Container: At least 15 gallons, wider than deep
Growth: Slow; about 1 ft per year (estimated)
Lifespan: Perennial; can live 100+ years

When?

Plant in autumn or early spring while the tree is dormant or just leafing out. Avoid hot summer planting (estimated).

Step by step

Pick a spot shielded from strong wind and harsh afternoon sun.
Dig a wide hole no deeper than the root ball.
Tease out circling roots before planting.
Set the root flare at or slightly above soil level.
Water deeply and mulch 2–3 in, keeping mulch off the trunk.
Water regularly for the first two summers while roots establish.
Prune only dead or crossing branches, in late winter or midsummer.

Common problems

Scorched, brown leaf edgesToo much sun or wind, or dry soil; add shade and water more steadily.

Leaves wilt and branches die backPossibly a soil-borne fungal wilt; remove affected wood and seek local advice.

Fading red colorToo much shade or heat; color is best with morning sun.

Pets

Japanese maple is not on ASPCA's toxic list and is generally considered low-risk for cats and dogs. If in doubt, ask your vet.

Similar plants

Magnolia Boxwood Camellia

Sources

ASPCA — Toxic and Non-Toxic Plants

This page is general guidance; no pesticide doses are given.