Best Plants for Erosion Control

Erosion control is a root system problem, not a foliage problem. The plants that stop soil from moving on a slope are the ones with dense, deep, fibrous root systems that bind soil particles together and increase water infiltration. Surface coverage -- how much green you see -- is.

Erosion control is a root system problem, not a foliage problem. The plants that stop soil from moving on a slope are the ones with dense, deep, fibrous root systems that bind soil particles together and increase water infiltration. Surface coverage — how much green you see — is secondary.

This matters because many plants sold for slopes and banks have shallow roots that provide surface coverage without meaningful erosion control. Dense annual groundcovers may look good for a season while the slope beneath them continues to erode.

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Slope Gradient Guide

Per NC State Extension:

• Under 2:1 (under 50% grade): Most ground covers and shrubs can establish without reinforcement
• 2:1 to 3:1 (33–50% grade): Use erosion control fabric during establishment; choose deep-rooted species
• Steeper than 3:1: Engineering reinforcement typically required; consult a civil engineer or Extension specialist

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