Types of Groundcovers Best Suited for Alaska Landscaping

Alaska presents a unique set of challenges and opportunities for landscaping. Long winters, short growing seasons, freeze-thaw cycles, permafrost in some areas, acidic soils, and coastal salt spray all influence plant selection. Groundcovers are a critical tool for Alaskan landscapes: they protect soil from erosion, suppress weeds, extend the growing season, provide habitat for pollinators and wildlife, and create attractive low-maintenance surfaces where turf is impractical. This article describes the types of groundcovers that perform best across Alaska’s diverse regions, explains site considerations, and gives practical planting and maintenance guidance for successful, resilient plantings.

Why groundcovers matter in Alaska

Groundcovers stabilize soils on slopes and stream banks where frost heave and winter runoff can cause erosion. They conserve moisture during short, dry summer periods and reduce maintenance compared with high-input lawns. Many native and well-adapted non-native groundcovers are evergreen or semi-evergreen, offering winter structure and soil insulation under snow. In coastal areas, salt-tolerant groundcovers buffer wind and spray. In interior and alpine regions, low, mat-forming plants resist wind desiccation and snow abrasion.

Key site considerations before you plant

Assessing microclimate and soil is the first step to choosing appropriate groundcovers. Consider these factors.

Hardiness zone and local microclimate: Alaska ranges from USDA zones 1 through about 7 in localized coastal pockets. Know your local lows and wind exposure. South-facing sheltered sites will accept a wider range of plants than exposed ridgelines.
Soil type and drainage: Many Alaskan soils are acidic and may be shallow or peat-rich. Some locations have poor drainage or seasonal saturation. Other sites have well-drained rocky soils. Choose species adapted to your soil moisture and amend only when necessary.
Snowpack and freeze-thaw cycles: Heavy snow insulates crowns but frequent freeze-thaw can cause heaving. Select plants that tolerate snow mold and seasonal movement.
Wildlife and pest pressure: Voles, rabbits, and deer browse can decimate low plants. Consider protective measures or choose species less palatable to local wildlife.
Salt spray and coastal wind: Use salt-tolerant and tough evergreen groundcovers near shorelines.

Categories of groundcovers suited to Alaska

Groundcovers for Alaska fall into several functional groups: native mat-formers, evergreen shrubs that spread, hardy succulents and rock-garden plants, sedges and grasses for wet areas, and mosses for shaded or boggy sites. Each group has species that excel in particular settings.

Native mat-forming shrubs and creepers

Native species are often the best first choice because they are adapted to local soils, climate, and wildlife. They provide ecological benefits and have the longevity to stabilize sites.

Kinnikinnick (Arctostaphylos uva-ursi): A classic Alaskan groundcover, this evergreen mat-former tolerates poor soils, drought once established, and cold down to very low temperatures in most Alaskan zones. It forms a dense carpet that helps control erosion and produces berries favored by birds. It performs best in well-drained, acidic soils and full sun to light shade.
Crowberry (Empetrum nigrum): Low, mat-forming, and evergreen, crowberry thrives in coastal and alpine zones. It tolerates cold, wind, and thin soils and produces persistent dark berries.
Bunchberry (Cornus canadensis): A low, spreading woodland plant that does well in shady, acidic soils. It offers spring flowers and attractive fall color and spreads by rhizomes to form a dense carpet.

Evergreen shrub groundcovers and low conifers

These plants combine year-round cover with woody structure, useful in exposed or windy sites.

Creeping juniper (Juniperus horizontalis): Very hardy, drought-tolerant, and excellent on slopes and rockeries. Available in many cultivars that vary in color and habit. Best in full sun and well-drained soils.
Low heathers and heaths (Calluna and Erica spp., and native Ericales like Vaccinium species): In suitable coastal and southern microclimates some low heathers and evergreen Vaccinium (e.g., lingonberry below) can form attractive mats.

Edible and attractive berry groundcovers

Lingonberry (Vaccinium vitis-idaea): Evergreen, hardy, shade-tolerant to part sun, and produces edible red berries. Great for acid soils and under conifers. Establishes slowly but is long-lived.
Kinnikinnick (Arctostaphylos uva-ursi) also fits here as edible and wildlife-friendly.

Hardy perennials and rock garden plants

These are excellent for alpine, rocky, or well-drained beds and provide spring color.

Creeping phlox (Phlox subulata): Low, mat-forming perennial with prolific spring flowers. Hardy and useful on sunny slopes.
Sedum (stonecrops), especially hardy species like Sedum spurium and Sedum kamtschaticum: Succulent leaves resist drought and cold; excellent for rock gardens and green roofs in milder Alaskan areas.
Thyme (Thymus serpyllum or Thymus praecox): In sheltered, sunny, low-salt areas thyme can form aromatic mats and attract pollinators.

Sedges, rushes, and grasses for wet or unstable soils

In streamside, tundra, or wet meadow conditions, sedges and certain grasses hold soil and tolerate saturated conditions.

Carex species (native sedges): Many Carex are adapted to Alaska’s wetlands, alpine meadows, and coastal edges. They form clumps or mats and have excellent erosion-control capabilities.
Festuca rubra (red fescue) and other fine fescues: Fine-textured fescues can be used as low, tolerant turf alternatives where drainage is adequate.

Mosses and bryophyte carpets

Mosses are exceptionally well-adapted to shaded, acidic, and boggy conditions found throughout Alaska. They require minimal maintenance and create natural-looking carpets on slopes and under trees.

Pleurozium schreberi and other feather mosses: Common in boreal forests, they form lush carpets and are excellent for restoration and low-maintenance shade groundcover.
Sphagnum spp. in bogs and wetlands: Important where soils are acidic and near-saturated, sphagnum helps maintain peat and water retention.

Recommended groundcovers by Alaskan region and situation

Every planting should match plants to micro-site. Here are practical recommendations by general region and setting.

Southeast coastal and temperate pockets

Kinnikinnick, lingonberry, evergreen heaths, sedum in sheltered rock gardens, and creeping juniper on well-drained sites. Sheltered sites can support more diverse perennials such as thyme and hardy phlox.

Interior and subarctic locations

Native sedges (Carex spp.), crowberry, bunchberry, moss carpets, and hardy sedum or creeping phlox in very sheltered sunny pockets. Prioritize species tolerant of freeze-thaw cycles and short seasons.

Alpine and arctic tundra-like exposures

Low mats: Empetrum (crowberry), dwarf willows in restoration settings, cushion plants, mosses, and specialized alpine sedges. Avoid nonnative introductions that cannot survive or may disrupt fragile ecosystems.

Wetlands, streambanks, and boggy soils

Native sedges (Carex), sphagnum where appropriate, bog-adapted Vaccinium species, and moisture-tolerant grasses such as certain fescues. These stabilize banks and tolerate seasonal saturation.

Practical planting and establishment steps

Follow these practical steps to give groundcovers the best chance at establishment.

Test the soil pH and texture. Amend only if necessary; many Alaskan natives prefer acidic soils. If soil is extremely compact or poorly drained, consider raised beds or improved drainage for species that require it.
Prepare the site by removing competing weeds and grass. On slopes, create terraces or erosion-control fabric temporarily until plants establish.
Plant in late spring to early summer after the last prolonged frost. This timing lets roots grow while soil is warming. In coastal milder areas, a fall planting window is sometimes possible for hardy shrubs.
Mulch lightly with coarse material (straw, bark chips, or gravel for alpine plants). Avoid thick layers of fine organic mulch that hold excess moisture against crowns and encourage rot.
Water regularly during the first two growing seasons to encourage root development. Reduce irrigation as plants establish; many natives require little supplemental water.
Protect from vole and rabbit damage with short mesh fencing or tree guards around small plants. Use deer-resistant species or repellents where deer pressure is high.
Monitor for erosion and fill gaps with additional plugs or cuttings. Many groundcovers spread by division or layering and can be propagated to fill voids.

Maintenance best practices

Groundcovers are lower maintenance than turf but still need periodic care to maintain health and coverage.

Weed control: Remove opportunistic weeds early. Dense plantings reduce weed seedling survival.
Pruning and thinning: Trim invasive runners of aggressive species that may smother desirable plants. Thin congested mats every few years to improve air circulation.
Fertility: Most Alaskan-adapted groundcovers require minimal fertilization. If growth is poor due to nutrient deficiency, apply a low-rate balanced fertilizer in spring.
Winter care: Avoid excessive late-season nitrogen that promotes late growth vulnerable to winter damage. In high-snow areas, allow snow to accumulate naturally to insulate plants rather than raking it off.
Pests and diseases: Watch for vole damage in winter and foliar diseases in damp springs. Select resistant species and maintain good spacing to reduce humidity-related problems.

Propagation and sustainable sourcing

Use locally sourced plant material whenever possible. Native genotypes are best adapted to local winters and daylength. Propagation options include division, layering (esp. for kinnikinnick and junipers), cuttings for many shrubs, and plugs for sedges and perennials. Moss transplants can be moved carefully from site to site, but large-scale removal from natural habitats is discouraged.

Design ideas and practical takeaways

Use a mix of species for resilience: combine evergreen mats, sedges, and spring-flowering perennials to provide year-round cover, seasonal blooms, and structural diversity.
Prioritize native plants for restoration, erosion control, and wildlife value. Where ornamental species are chosen, select those proven hardy in your microclimate.
Match plant to micro-site: sun lovers on south-facing slopes; mosses and bunchberry in cool, shaded understory; sedges along waterways.
Plan for establishment: proper site prep, mulching, and irrigation in the first two seasons are the best investments to reduce long-term maintenance.
Consider function as well as form: edible groundcovers like lingonberry provide food and habitat; junipers and kinnikinnick anchor soils and tolerate exposed conditions.

Choosing the right groundcover types for Alaska landscaping means balancing cold hardiness, soil moisture, wind and snow exposure, and wildlife interactions. With careful site assessment and species selection, groundcovers can transform difficult Alaskan sites into stable, attractive, and ecologically valuable landscapes that require far less upkeep than traditional turf.