North America Native Plant

Douglas Maple

Botanical name: Acer glabrum var. douglasii

USDA symbol: ACGLD4

Life cycle: perennial

Habit: shrub

Native status: Probably non-native, reproduces and persists in the wild in Alaska âš˜ Native to Canada âš˜ Native to the lower 48 states  

Synonyms: Acer douglasii Hook. (ACDO)  âš˜  Acer glabrum Torr. ssp. douglasii (Hook.) Wesmael (ACGLD2)   

Douglas Maple: A Versatile Native Shrub for Western Gardens Meet the Douglas maple (Acer glabrum var. douglasii), a charming native shrub that’s been quietly beautifying western North American landscapes for centuries. If you’re looking to add some authentic local character to your garden while supporting native wildlife, this adaptable maple ...

Douglas Maple: A Versatile Native Shrub for Western Gardens

Meet the Douglas maple (Acer glabrum var. douglasii), a charming native shrub that’s been quietly beautifying western North American landscapes for centuries. If you’re looking to add some authentic local character to your garden while supporting native wildlife, this adaptable maple variety might just be your new best friend.

What Makes Douglas Maple Special?

Don’t let the name fool you – while it’s called a maple, Douglas maple typically grows as a multi-stemmed shrub rather than the towering trees you might picture. This perennial woody plant usually stays under 13-16 feet tall, though it can occasionally reach up to 30 feet under ideal conditions. What it lacks in height, it makes up for in character and adaptability.

The Douglas maple is also known by its scientific synonyms Acer douglasii and Acer glabrum ssp. douglasii, so don’t be confused if you see these names floating around nurseries or botanical references.

Where Does Douglas Maple Call Home?

This native beauty has quite the impressive range across western North America. You’ll find it naturally growing in Alberta and British Columbia in Canada, and throughout the western United States including California, Idaho, Montana, Nevada, Oregon, Washington, and Wyoming. There’s even some presence in Alaska, though it may have been introduced there rather than occurring naturally.

Why Consider Douglas Maple for Your Garden?

There are several compelling reasons to give this native shrub a spot in your landscape:

  • Seasonal Interest: While the spring flowers are subtle green blooms, the real show happens in fall when the foliage puts on a conspicuous display
  • Native Plant Benefits: As a true native, it supports local ecosystems and requires less water and maintenance once established
  • Shade Tolerance: Unlike many shrubs, Douglas maple actually tolerates shade well, making it perfect for those tricky understory spots
  • Manageable Size: At a moderate growth rate, it won’t overwhelm your space but will provide solid structure
  • Wildlife Value: Though specific benefits aren’t well-documented, native maples typically provide food and habitat for various wildlife species

Perfect Garden Situations

Douglas maple shines in several landscape scenarios:

  • Native plant gardens and natural landscapes
  • Woodland or forest edge plantings
  • Understory areas beneath taller trees
  • Naturalized areas where you want low-maintenance, authentic regional character
  • Wildlife habitat gardens

Growing Conditions: What Douglas Maple Needs

The good news? Douglas maple isn’t particularly fussy. Here’s what it prefers:

  • Soil: Adaptable to coarse and medium-textured soils, but skip the heavy clay. pH between 5.5-7.5 works best
  • Water: Medium moisture needs – not a drought-tolerant superstar, but not a water hog either
  • Light: Shade tolerant, which is unusual and valuable for a shrub
  • Climate: Handles temperatures down to about -13°F and needs at least 120 frost-free days
  • Hardiness: Suitable for USDA zones 6-9 based on its temperature tolerance

Planting and Care Tips

Getting your Douglas maple established is relatively straightforward:

  • Propagation: Can be grown from seed (which requires cold stratification), bare root plants, or containers
  • Spacing: Plan for 700-2700 plants per acre if doing mass plantings – that translates to roughly 6-15 feet apart for individual specimens
  • Establishment: Provide medium fertility soil and consistent moisture the first year
  • Maintenance: Once established, this low-maintenance native largely takes care of itself
  • Availability: Currently only available through special contracting, so you might need to plan ahead or contact native plant specialists

A Few Things to Keep in Mind

While Douglas maple has many positive qualities, it’s worth noting a few considerations:

  • It’s not particularly drought-tolerant, so it may need supplemental water in very dry climates
  • Fire resistance is low, so consider this if you’re in a fire-prone area
  • Growth rate is moderate – patience pays off, but don’t expect instant gratification
  • Commercial availability is limited, requiring special sourcing

The Bottom Line

Douglas maple represents the best of native plant gardening: authentic regional character, wildlife support, and relatively easy care once established. While it may not be the showiest plant in your garden, it provides the kind of steady, reliable beauty that forms the backbone of successful native landscapes.

If you’re working with a partially shaded site in the western regions where this plant naturally occurs, and you value supporting native ecosystems, Douglas maple deserves serious consideration. Just be prepared to do a bit of hunting to source one – the best things in native gardening often require a little extra effort, but the results are worth it.

How

Douglas Maple

Grows

Growing season

Spring and Summer

Lifespan

Moderate

Growth form & shape

Single Stem and Erect

Growth rate

Moderate

Height at 20 years

20

Maximum height

30.0

Foliage color

Green

Summer foliage density

Moderate

Winter foliage density

Porous

Foliage retention

No

Flowering

No

Flower color

Green

Fruit/seeds

No

Fruit/seed color

Brown

Allelopath

No

Nitrogen fixing

None

Toxic

None

C:N Ratio

High

Fire Resistant

No

Foliage Texture

Coarse

Low-growing Grass

No

Resproutability

Yes

Coppice Ability

No

Bloat

None

Douglas Maple

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

No

Anaerobic tolerance

None

CaCO₃ tolerance

Low

Cold Stratification

Yes

Drought tolerance

Low

Nutrient requirement

Medium

Fire tolerance

Low

Frost-free days minimum

120

Hedge tolerance

None

Moisture requirement

Medium

pH range

5.5 to 7.5

Plants per acre

700 to 2700

Precipitation range (in)

16 to 50

Min root depth (in)

24

Salt tolerance

None

Shade tolerance

Tolerant

Min temperature (F)

-13

Cultivating

Douglas Maple

Flowering season

Late Spring

Commercial availability

Contracting Only

Fruit/seed abundance

Medium

Fruit/seed season

Summer to Fall

Fruit/seed persistence

No

Propagated by bare root

Yes

Propagated by bulb

No

Propagated by container

Yes

Propagated by corm

No

Propagated by cuttings

No

Propagated by seed

Yes

Propagated by sod

No

Propagated by sprigs

No

Propagated by tubers

No

Seed per pound

16000

Seed spread rate

Slow

Seedling vigor

Medium

Small grain

No

Vegetative spread rate

None

Douglas Maple

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Sapindales

Family

Aceraceae Juss. - Maple family

Genus

Acer L. - maple

Species

Acer glabrum Torr. - Rocky Mountain maple

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA