How do I stop erosion on a steep hillside?

Steep sandy slopes shed soil rapidly during rain events - gravity pulls the loose soil down the hill, creating gully erosion. I've stabilized 45-degree slopes using layered techniques. Your system will require a combination of plants and structures. Start at the top and work down to avoid cascading failures.

Immediately begin planting your deep-rooted shrubs. Cotoneaster and juniper can anchor themselves to steep slopes with their woody roots. Space them 3 feet apart across the hill. You may also want to add native grasses in between. Their fibrous roots form a network underground. Water them thoroughly for quick establishment.

Terracing is a great solution for steep slopes. Use geotextile fabric and cover it with gravel between terraces. Set terraces 6 vertical feet apart. Additionally, add drainage pipes behind each wall. I typically use local stone for a more natural look. You can achieve a 90% reduction of erosion when done correctly.

Angular rocks redirect runoff effectively. Use bigger rocks at gully heads. Use check dams of baseball-sized rocks. Ensure each has tight, interlocking layers. Do not use rounded riverstones. They will roll away with heavy storm events, which defeat your intention.

Seasonally maintain your slope defenses. Inspect after each large storm. Replant bare spots within 2 weeks. Add mulch before winter freezes. I log changes with photos. Regular care will prevent small issues from escalating into a major problem.

You can overcome the steep-slope erosion, too! Start small, one terrace section at a time, and add plants as your budget allows. In one to two seasons, your hillside will be stable. I have seen clients turn treacherous and hazardous drops into lovely terraced gardens. Your diligence will pay off in saved souls.

Read the full article: 9 Effective Ways to Prevent Soil Erosion