Tree · Sapindaceae family

Japanese maple

Acer palmatum

Part shade 4–10 m × 4–9 m Flowers April–May to −23 °C Demanding
Flower colours Click a colour
Japanese maple
4–10 mmature height
April–Mayflowering
to −23 °Chardiness
Photo: AnRo0002 · CC0 · Wikimedia Commons

In short a 10-second read

Japanese maple (tree) grows to 4–10 m tall and 4–9 m wide when mature. It grows best in part shade, in average to moist soil. It flowers in April–May; the flowers are purple. Hardy to −23 °C.

SunPart shade
Size4–10 m
× spread 4–9 m
FlowersApril–May
PruningJust tidy up
NovDec
WinterNo protection
CareDemanding

Where to plant

Sun, soil, frost.

It grows best in part shade, in average to moist soil. Hardy to −23 °C.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Elsewhere it will grow less well.

Soil and water

average to moist · watering: moderate

Soil: humus-rich, sandy

acidic 4neutral 7alkaline 9

Soil pH 5–6.5

Frost

−23 °C

It copes with a normal winter outdoors.

How much space it takes

Mature size.

The mature plant next to a person (175 cm).

Next to a person

1 m2 m3 m4 m5 m6 m7 m8 m9 m10 m4–10 mspread 4–9 m

Reaches maturity in about 10–20 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

What to do and when.

Months for Central Europe. The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberPruning: JanuaryPruning: FebruaryPruning: MarchPruning: AprilPruning: MayPruning: JunePruning: JulyPruning: AugustPruning: SeptemberPruning: OctoberPruning: NovemberPruning: DecemberPlanting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberWinter protection: JanuaryWinter protection: FebruaryWinter protection: MarchWinter protection: AprilWinter protection: MayWinter protection: JuneWinter protection: JulyWinter protection: AugustWinter protection: SeptemberWinter protection: OctoberWinter protection: NovemberWinter protection: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersPruningPlanting
Now, in October: a good time for planting (container plant, bare-root, root-balled).

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

April–May · purple

Pruning

JanFebMarAprMayJunJulAugSepOctNovDec

No pruning needed — just remove dead, diseased or damaged branches, crossing branches and shoots growing in the wrong direction (November–December).

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: October–April; bare-root: October–March; root-balled: October–March

Winter protection

JanFebMarAprMayJunJulAugSepOctNovDec

not needed

Overwintering

It copes with winter on its own.

It overwinters outdoors without protection, hardy to −23 °C.

  • Needs no protection
  • Hardy to −23 °C
  • Deciduous — bare in winter

Frequently asked

Quick answers.

When does Japanese maple flower?

In April–May; the flowers are purple.

Does Japanese maple tolerate shade?

It tolerates part shade (3–6 hours of sun), but not full shade.

How much space does Japanese maple need?

At maturity 4–9 m wide and 4–10 m tall; recommended spacing 500 cm.

Does Japanese maple survive winter outdoors?

Yes, without protection, hardy to −23 °C.

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