Ground Cover for Slopes and Erosion Control

Why This Matters

Ground cover plants are the gardener’s secret weapon against weeds, erosion, and bare soil. Once established, a dense ground cover planting eliminates the need for mulching, reduces watering, and creates a living carpet that looks far more attractive than bare dirt or struggling lawn grass.

The best ground covers fill in quickly, stay low, require minimal maintenance, and crowd out competing weeds. Many also provide seasonal flowers, fragrance when stepped on, erosion control on slopes, and habitat for beneficial ground-dwelling insects.

Getting Started

Success begins with understanding your specific conditions and choosing varieties or methods matched to your climate, space, and experience level. Start with the easiest approach and refine your technique as you gain confidence.

• Full sun, dry: Creeping thyme, sedum, ice plant, delosperma — drought-proof and heat-loving
• Full sun, moist: Creeping phlox, sweet woodruff, ajuga — colorful and vigorous in good soil
• Shade, dry: Epimedium, pachysandra, wild ginger — tough plants for the most difficult conditions
• Shade, moist: Hostas, ferns, lamium, sweet woodruff — lush coverage for woodland-style gardens
• Walkable: Creeping thyme, Corsican mint, Irish moss — handle foot traffic and release fragrance when stepped on

Essential Techniques

Prepare the planting area by removing all existing weeds, especially perennial weeds with runners. Any weeds left will grow through your ground cover and become much harder to remove once the planting fills in.

Water new ground cover plantings deeply twice per week during the first growing season. Once established (usually by the second year), most ground covers become drought-tolerant and need supplemental water only during extended dry periods.

Apply a thin layer of mulch (1 to 2 inches) between newly planted ground cover to suppress weeds while plants fill in. As ground cover spreads and creates its own living mulch, supplemental mulching becomes unnecessary.

Common Challenges

Most problems are preventable with proper planning and early intervention. Monitor regularly, address issues when they first appear, and do not wait until damage becomes severe.

• Slow to fill in: Planting too far apart or poor soil preparation — add compost and plant closer together
• Invasive spreading beyond intended area: Choose clumping rather than running varieties, or install root barriers
• Brown patches in summer: Drought stress or fungal disease — water deeply during dry spells and improve drainage
• Weeds growing through ground cover: Not established yet or planting gaps — fill gaps with divisions from thick areas
• Ground cover dying under trees: Not shade-tolerant enough, or tree roots competing for water — choose shade specialists and water more frequently

Making the Most of Your Space

Use ground covers to create beautiful transitions between different garden zones. A ribbon of creeping thyme along a path edge or a sweep of ajuga beneath a hedge provides polished, professional-looking detail.

Replace struggling lawn areas with ground covers suited to the actual conditions. A shady spot that grows patchy grass will thrive under pachysandra or wild ginger with zero mowing required.