Plants for Erosion Control
The best plants for controlling erosion on large banks and slopes are vigorous, low growing shrubs or climbers (grown in a spreading fashion across the ground) with an extensive root system that’s effective at holding the soil in place through all weather conditions. For smaller sites, various alpines, grasses, perennials, heathers and even ferns will do the job too. A spreading growth habit helps to moderate intense rainfall while attractive foliage brings colour and interest to bare patches of soil. There is a balance to be struck between choosing plants vigorous enough to develop a stabilising root structure across the planting area but equally not plants that become so invasive that it becomes a maintenance headache to keep them within required bounds. The optimal choice will depend on the size of the area you need to cover and the need to choose plants that are suitable for the soil type and light conditions at your site.
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