treeN. America Native

Somerset Red Maple

Acer rubrum 'Somerset'

The Story

Plant Bio

Acer rubrum is a deciduous canopy tree native to eastern and central North America, where it inhabits moist lowlands and river valleys. It produces showy clusters of bright red flowers on bare branches in early spring before developing glossy foliage.

'Somerset' is a male selection derived from a cross between 'October Glory' and 'Autumn Flame' that produces no seeds. It forms an upright, oval crown and reliably develops long-lasting scarlet foliage in late fall.

Uses & Benefits:

Ornamental UsesProduces vibrant scarlet fall color and dense canopy shade.
Practical UsesFunctions as a fast-growing shade tree that produces no seed litter.
Ecological BenefitsProvides early-season nectar for native bees and spring shelter for birds.
SpeciesAcer rubrumRed Maple

Essentials

At a Glance

Plant Type

Tree

Height

600"

Width

360"

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moist to wet

Humidity

High

Lifespan

Long-lived

Native To

North America

Toxicity

Non-toxic

Bloom period

Early spring – Spring

J
F
M
A
M
J
J
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S
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In flower about 3 months of the year

Planting

How to Grow

  1. Select a planting site in full sun to partial shade with acidic, moisture-retentive soil.
  2. Dig a hole twice as wide as the root ball and equal to its depth.
  3. Position the tree so the root flare sits slightly above the surrounding soil surface.
  4. Backfill with native soil, tamp down gently to remove air pockets, and water thoroughly.
  5. Apply a 3- to 4-inch mulch ring around the root zone, keeping mulch off the main trunk.

Pro Tip

Plant in acidic soils with a pH between 4.5 and 6.5; planting in alkaline soils triggers nutrient lockup that causes severe leaf chlorosis.

Keep It Thriving

Care Guide

Do

  • Maintain consistent soil moisture, especially during dry summer periods.
  • Apply organic mulch to retain root-zone moisture and suppress competition.
  • Prune only in late summer or early fall to prevent sap bleeding.

Don't

  • Do not plant in alkaline soil with a pH above 6.5.
  • Do not prune in late winter or spring when active sap flow leads to heavy bleeding.
  • Do not allow young trees to experience severe drought stress.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Mulch
Pest Check
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shade treeSpecimen treeStreet treeRain garden canopy

Multiply

Propagation Methods

Good to Know

Common Questions

Somerset Red Maple questions

What zones can Somerset Red Maple grow in?

Somerset Red Maple is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Somerset Red Maple deer resistant?

Not reliably. Deer may browse Somerset Red Maple, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Somerset Red Maple bloom?

Somerset Red Maple typically blooms in early spring through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Somerset Red Maple need full sun?

Somerset Red Maple does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Keep exploring

Grow Somerset Red Maple with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.