Ground Cover Plants: How to Choose the Right One for Your Yard

There is no single best groundcover plant for every yard. The best choice depends entirely on your specific site conditions: your US climate zone, direct sunlight hours, soil moisture, drainage, and expected foot traffic. A sun-loving drought groundcover like Creeping Thyme will quickly rot in damp shade, while a lush shade plant like Wild Ginger will scorch in full afternoon sun. Match the species to your site first, then verify that it is not invasive in your region.

No groundcover eliminates weeds entirely. Dense, mature groundcovers suppress weeds by 85% to 95% by shading out dormant weed seeds and competing for moisture and nutrients. However, during the first 1 to 2 years of establishment, open soil between young plugs will sprout weeds, requiring a 1.5-to-2-inch clean mulch buffer and regular hand-weeding until the foliage canopy closes.

Most ornamental groundcovers cannot tolerate regular foot traffic. According to Colorado State University Extension, walking on broadleaf or flowering groundcovers crushes their tender stems and compacts the soil. Only specialized turf-forming plants (such as Buffalograss in dry climates or Kurapia in warm zones) or stepping-stone joint fillers (like Creeping Thyme and Mazus reptans) tolerate occasional stepping. For daily human circulation, install a dedicated flagstone, paver, or gravel walkway.

Dry shade beneath mature trees is one of the most challenging planting sites due to intense root competition and reduced rainfall penetration. The best groundcovers for dry shade include Pennsylvania Sedge (Carex pensylvanica), Barrenwort (Epimedium spp.), Bigroot Geranium (Geranium macrorrhizum), Christmas Fern (Polystichum acrostichoides), and Allegheny Spurge (Pachysandra procumbens). Always plant small plugs into natural root pockets without severing structural tree roots.

Avoid planting non-native groundcovers that have documented invasive behavior in your region. Common big-box staples like English Ivy (Hedera helix), Periwinkle (Vinca minor), Japanese Pachysandra (Pachysandra terminalis), Wintercreeper (Euonymus fortunei), Bishop's Goutweed (Aegopodium podagraria), and Creeping Jenny (Lysimachia nummularia) frequently escape residential yards and aggressively invade natural forests, smothering native wildflowers and killing trees.

Vigorous spreaders like Wild Strawberry (Fragaria virginiana), Golden Ragwort (Packera aurea), and Creeping Juniper can cover bare ground rapidly. However, rapid growth is a double-edged sword: plants that spread fast often require constant edging to prevent them from invading nearby perennial beds and can present high escape risks. Faster is not always better; choose a spread rate that fits the size and boundaries of your space.

An aggressive plant spreads rapidly within a garden bed (by vigorous stolons, rhizomes, or self-seeding) and may require frequent trimming, but it does not necessarily disrupt natural ecosystems. An invasive plant is a non-native species that escapes cultivation, reproduces aggressively in natural wildlands, and causes demonstrable ecological or economic harm by displacing native plants and wildlife.

Groundcovers with deep or fibrous root systems (such as Creeping Juniper, Bearberry, and native sedges) help reduce surface soil washouts and slow storm runoff on gentle to moderate slopes (under 20% grade). However, groundcovers cannot fix deep structural slope instability, rotational soil shear, or active groundwater slumping. Slopes with significant structural movement require professional grading, terracing, or engineered retaining walls.

A 'living mulch' is a dense understory layer of low-growing plants that carpets exposed soil beneath taller shrubs and perennials. It provides the same functional benefits as bagged wood mulch—shading soil, moderating soil temperatures, reducing moisture evaporation, and suppressing weeds—while eliminating the annual labor and expense of hauling new mulch bags every spring.

Excellent full-sun native groundcovers include Creeping Phlox (Phlox subulata), Barren Strawberry (Waldsteinia fragarioides), Bearberry (Arctostaphylos uva-ursi), and native clump-forming prairie grasses and sedges. In arid or western climates, Buffalograss and Sulphur-Flower Buckwheat provide outstanding drought resilience.

Protect tree health by following three arboricultural rules: 1) Never bring in deep topsoil or build raised planters over the root zone, which smothers tree roots; 2) Never cut structural woody roots larger than 1.5 inches in diameter; 3) Plant small 2-inch to 4-inch plugs or bare-root divisions into existing soil pockets between major roots, keeping all foliage back from the tree's basal root flare.

No. Evergreen foliage retention depends on winter temperature severity, wind exposure, and snow cover. A broadleaf plant like Allegheny Spurge or Goldenstar may stay pristine green throughout winter in USDA Zone 7 or 8, but will drop foliage or suffer winter burn and die back to the ground in USDA Zone 4 or 5. Always evaluate evergreen performance relative to your local USDA hardiness zone.