Erosion Control on Steep Slopes: Groundcover Alternatives to Hydroseeding

The Challenge

A newly built home near Atlanta has 150 loads of fill dirt creating steep, north-facing, full-sun slopes around a walk-out foundation. Immediate erosion control is needed; long-term aesthetics matter. Hydroseeding with Bermuda grass and Curlex blanket was proposed, but the slope is too steep to mow. Andora compacta juniper was considered but may establish too slowly.

Why Not Hydroseed or Junipers?

• Hydroseeding + no mowing = tall, messy grass that traps debris and looks unkempt.
• Junipers en masse attract spider mites, bagworms, and are difficult to weed.

Recommended Solution: Sedum + Landscape Fabric

1. Cover entire slope with nursery-grade woven landscape fabric (not plastic). Staple securely with 6-inch landscape pins every 2–3 feet.
2. Plant Sedum 'Angelina' (or similar creeping sedums) through fabric at 12-inch centers. Cut an 'X' in fabric, plant into soil beneath, fold fabric back, and staple.
3. Optional: Hide fabric temporarily with pine straw mulch held by bird netting (stapled). Netting becomes invisible as sedum fills in.

Why This Works

• Immediate erosion control: Fabric holds soil from day one.
• Rapid coverage: Sedum 'Angelina' forms a dense mat in ~1 year in full sun.
• Near-zero maintenance: Fabric suppresses weeds; sedum is drought-tolerant, evergreen, and colorful (gold foliage, yellow flowers).
• No mowing ever.

Critical Check: Winter Sun Exposure

Confirm the slope receives full sun year-round. If the house shades it in winter, choose a shade-tolerant groundcover like Pachysandra procumbens (Allegheny spurge), Carex species, or Phlox stolonifera instead.