Tree · Sapindaceae family
red maple
Acer rubrum
In short a 10-second read
Red maple (tree) grows to 12–20 m tall and 8–12 m wide when mature. It grows best in full sun to part shade, in average to moist soil. It flowers in March; the flowers are red. Hardy to −40 °C.
× spread 8–12 m
Where to plant
Sun, soil, frost.
It grows best in full sun to part shade, in average to moist soil. Hardy to −40 °C.
Sun
Tolerates several positions — choose to suit the rest of the garden.
Soil and water
average to moist · watering: moderate
Soil: loamy, humus-rich, sandy
Soil pH 4.5–7
Frost
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
Reaches maturity in about 20–50 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
March · red
Pruning
No pruning needed — just remove dead, diseased or damaged branches, crossing branches and shoots growing in the wrong direction (December–January).
Planting
container plant: October–April; bare-root: October–March; root-balled: October–March
Winter protection
not needed
Overwintering
It copes with winter on its own.
It overwinters outdoors without protection, hardy to −40 °C.
- Needs no protection
- Hardy to −40 °C
- Deciduous — bare in winter
Frequently asked
Quick answers.
When does red maple flower?
In March; the flowers are red.
Does red maple tolerate shade?
It tolerates part shade (3–6 hours of sun), but not full shade.
How much space does red maple need?
At maturity 8–12 m wide and 12–20 m tall; recommended spacing 800 cm.
Does red maple survive winter outdoors?
Yes, without protection, hardy to −40 °C.
Where the data comes from
The data is indicative — we are still comparing it with further sources. Last checked 17 October 2026.
Show sources (17)
- GBIF — Acer rubrum
- Okrasné škôlky (SK) — Listnaté stromy
- Van den Berk
- NC State Extension
- GBIF Backbone Taxonomy (species/match)
- Wikipedia (EN)
- RHS - Acer rubrum
- Missouri Botanical Garden - Acer rubrum
- RHS - Bleeding from pruning cuts
- RHS - Mulches and mulching
- RHS - Shrubs and trees: light pruning
- RHS - Bleeding from pruning cuts
- RHS - Trees and shrubs: planting
- Clemson HGIC - Planting Trees Correctly
- Invasive plant lists — this species is not on them: Slovakia, Czechia, Germany
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