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Northern Pacific Alaskan coastal forests

Northern Pacific Alaskan coastal forests

Northern Pacific Alaskan coastal forests
The Northern Pacific Alaskan coastal forests cover the Southeast Alaska panhandle, Kodiak, and a thin coastal strip along the Gulf of Alaska — the temperate-rainforest band west of the St. Elias and Wrangell ranges. Sitka spruce and western hemlock dominate the canopy; the Tongass National Forest covers most of the ecoregion and is the largest temperate rainforest in the world. Maritime moderation, abundant precipitation (~150-200 in / year on the wettest coasts), and glacier-shaped fjords define the landscape.
RESOLVE 360
Nearctic
24,709 sq mi
Subpolar oceanic (Köppen Cfc / Dfc transitional)
Temperate Conifer Forests
States / provinces
Alaska, British Columbia
Landscape type
Temperate Conifer Forests
Plant region
Nearctic
Region footprint
24,709 sq mi
Elevation range
0 – 6,000 ft
Climate type
Subpolar oceanic (Köppen Cfc / Dfc transitional)
Habitat pressure
Half Protected (Dinerstein NNH 1)
Use this as the broad planting pattern for the region: Temperate forests dominated by evergreen conifers, from coastal rainforests to montane pine and fir stands. Adapted to cool, moist or seasonally dry climates, they include some of the tallest and longest-lived trees on the planet. For garden decisions, pair that context with the plant list below, then narrow by your site's light, water, soil, and mature-size constraints.

Range & origins

Northern Pacific Alaskan coastal forests location on world map
Marker placed inside the RESOLVE 2017 polygon at 56.7°N, 132.4°W.
Region through time
Modern footprint
RESOLVE 2017 maps 24,709 sq mi
This boundary is a modern ecological footprint for Northern Pacific Alaskan coastal forests, not a permanent line on the planet. It is useful for today's plant and wildlife context because it follows recurring vegetation, climate, landform, and disturbance patterns.
Why here
Subpolar oceanic (Köppen Cfc / Dfc transitional) conditions
The region sits in the Nearctic realm and is classed as temperate conifer forests. Elevation, moisture, fire, soils, coasts, and human land use can all make the real landscape more varied than a single map color suggests.
Change pressure
Half Protected
Glacier retreat across the Tongass and Glacier Bay region is rapid and visible at human timescales; the calving glaciers of Glacier Bay have retreated 65+ miles since the late 18th century, with the pace accelerating since the 1970s.

Planting collections

Finished planting recipes where every member can handle this region's climate range. The fit badge uses the collection's most sensitive plant, so a resilient collection is a safer starting point than any single standout.
Climate-resilient · 2 plants
Bright shade foundation
A part-shade planting with shrub structure and low foliage contrast.
Annabelle hydrangea
Coral bells
+4
Climate-resilient · 8 plants
Climate-resilient natives for warming zones (eastern NA)
A pollinator-supporting palette of eastern North American natives with broad hardiness ranges and wide native distributions. Built for gardeners who want a planting that can handle warming zones without giving up wildlife value.
Switchgrass
Little bluestem
Common milkweed
Black-eyed Susan
Wild bergamot
Sweet Joe-Pye weed
Cutleaf coneflower
New England aster
Climate-resilient · 3 plants
Kitchen patio planters
A compact edible collection for containers, patios, and near-door harvesting.
Genovese basil
Lacinato kale
Coral bells
+2
Climate-resilient · 6 plants
Mediterranean drought-tolerant edible
A low-water edible palette of culinary herbs + a hardy grape for hot dry sunny sites. Mediterranean-origin plants thrive on neglect; their primary failure mode is overwatering, not underwatering.
English lavender
Rosemary
Garden sage
Oregano
Common thyme
Fox grape
+5
Climate-resilient · 9 plants
Native pollinator border (eastern US)
A continuous-bloom native pollinator strip for eastern North America. Covers spring through frost with host + nectar plants spanning monarchs, native bees, hummingbirds, and specialist Lepidoptera. Little bluestem provides the matrix grass + Hesperiidae host.
Butterfly weed
Common milkweed
Purple coneflower
Wild bergamot
Scarlet bee balm
Little bluestem
Sweet Joe-Pye weed
Swamp sunflower
Smooth blue aster
Climate-resilient · 4 plants
Sunny pollinator border
A durable sunny border with summer bloom, seedheads, and upright winter texture.
English lavender
Purple coneflower
Black-eyed Susan
Switchgrass

Similar planting regions

Browse other regions with a similar hot, dry-summer rhythm. Their plant lists can suggest species and combinations worth comparing.
RESOLVE 345 - Nearctic
Alberta-British Columbia foothills forests
The Alberta-British Columbia foothills forests form a transitional temperate conifer ecoregion straddling the boundary between the Rocky Mountains to the west and the Mid-Canada boreal plains to the east, lying mostly in Alberta with a portion in British Columbia. Mixed forests of lodgepole pine, quaking aspen, jack pine, and white spruce dominate, with balsam poplar, paper birch, and balsam fir also common, while wetter sites support black spruce and tamarack. The climate is subhumid and cold temperate, with short summers averaging 13-15C, cold winters from -17.5 to -10C, and annual precipitation of roughly 400-600 mm. Heavily altered by agriculture, logging, and oil and gas development, only about 1% of the ecoregion holds protected status.
Temperate Conifer Forests
Zones 6b-7b
+5.6°F by 2070
46,764 sq mi
NNH tier 2
RESOLVE 346 - Nearctic
Arizona Mountains forests
The Arizona Mountains forests — the sky-island and Mogollon Rim forest belt of central and eastern Arizona, southwestern New Mexico, and a thin strip in adjacent Mexico. Elevation banding from desert grassland and pinyon-juniper through ponderosa pine + Gambel oak, Douglas fir + aspen + white fir at higher elevations, and isolated subalpine spruce-fir on the highest peaks (Humphreys Peak, Mt. Baldy). The 'Madrean sky islands' on the southern edge connect biotic elements of the Sierra Madre Occidental with the Southwest US.
Temperate Conifer Forests
Zones 8a-11b
+3.7°F by 2070
42,830 sq mi
Editorial profile
NNH tier 4
RESOLVE 347 - Nearctic
Atlantic coastal pine barrens
The Atlantic coastal pine barrens — the fire-dependent pitch pine + scrub oak ecosystem of the New Jersey Pinelands, Long Island Pine Barrens, Cape Cod, and smaller patches across coastal Massachusetts and adjacent Rhode Island / Connecticut / Delaware. Sandy, acidic, nutrient-poor soils plus historic frequent fire produced the open canopy and rich heath / sedge understory. The NJ Pinelands National Reserve protects the largest remnant.
Temperate Conifer Forests
Zones 8b-11a
+5.7°F by 2070
5,517 sq mi
Editorial profile
NNH tier 3
RESOLVE 348 - Nearctic
Blue Mountains forests
The Blue Mountains forests cover the elevated interior of northeastern Oregon and adjacent southeastern Washington — a Pacific-Northwest-but-not-coastal landscape of ponderosa pine, Douglas fir, grand fir, and western larch on the uplands, with sagebrush-steppe filling the lower valleys. Drier and more continental than the western Cascades; the region's plant palette is closer to the Northern Rockies' inland-PNW look than to the rainforest west of the crest.
Temperate Conifer Forests
Zones 8b-9b
+4.4°F by 2070
27,315 sq mi
Editorial profile
NNH tier 3
RESOLVE 349 - Nearctic
British Columbia coastal conifer forests
The British Columbia Coastal Conifer Forests ecoregion spans the mainland Coast Mountains of British Columbia, just inland of the outer Pacific coast, across the Pacific and Kitimat Ranges to elevations near 4,000 meters. Conifers dominate, especially Douglas-fir and western hemlock communities alongside western red cedar, amabilis fir, and Alaskan yellow cedar in subalpine zones. The wet maritime climate brings annual precipitation from about 1,500 mm at lower elevations to 3,400 mm higher up, falling mostly in winter, with drier summers. Lowland forests are notably rich in epiphytes, fungi, amphibians, and invertebrates, and the Great Bear Rainforest here holds ancient stands representing a quarter of the world's coastal temperate rainforest.
Temperate Conifer Forests
Zones 7a-11a
+3.6°F by 2070
42,676 sq mi
NNH tier 2
RESOLVE 350 - Nearctic
Central British Columbia Mountain forests
The Central British Columbia Mountain forests stretch northwest-to-southeast across north-central British Columbia, east of the Coast Mountains, spanning ranges such as the Omineca, Skeena, Stikine, and Hart at elevations from 700 to 2,400 metres. Low slopes carry western red cedar, western hemlock, lodgepole pine, aspen, and spruce, grading into subalpine Engelmann spruce and fir and, on the highest ground, alpine tundra. The climate is subarctic, with a mean annual temperature near 2°C, summers around 12°C, and cold winters. The grizzly bear is the flagship species, but only about 6% of the ecoregion is protected, leaving it exposed to intensive logging.
Temperate Conifer Forests
Zones 7a-11a
+4.2°F by 2070
53,825 sq mi
NNH tier 2

Sources & citations

Cite this page
For lesson plans, articles, or regional planting notes that use this Plotwright page. To cite the underlying ecoregion framework or a specific editorial profile, use the source cards below.
Plotwright. (n.d.). Northern Pacific Alaskan coastal forests (Northern Pacific Alaskan coastal forests). Retrieved 2026, June 14, from https://plotwright.garden/regions/resolve-360
Sources for this region
This page cites Plotwright first for the compiled view, then lists the upstream framework, climate, and editorial source pages so readers can cite the original material directly.
RESOLVE 2017 Terrestrial Ecoregions (Dinerstein et al.)
Primary ecoregion framework
Backs 4 fields
RESOLVE id
Biome + realm
Area
NNH tier
Canada Plant Hardiness
Published hardiness-zone authority
Backs 1 field
NRCan zone range