Cover steep slopes
Mulching with heavy materials like gravel that won’t easily wash away, and planting grass or other ground cover plants such as those we’ve just touched on can help stop erosion and the creation of a mud slide when torrential rain sets in.
If you have a really steep slope there are commercial matting products you can also roll out and pin down to your slope until plants become better established.
If you are planting on a really steep slope, just ensure that it’s not too steep to allow mowing and maintenance of whatever you put in. If it is too steep for you to maintain, a retaining wall or terraces are the next step.
If the slope in or beside your garden is too steep for proper planting/grass growth and maintenance a retaining walls and creating terraces are ideal for stopping erosion and to help turn steep, hilly spaces into useable areas in your yard.
Retaining walls can create a great garden bed base and add a lovely feature to your garden. Plus, there are a lot of finishes – from natural stone to timber and concrete – that can be used for a retaining wall.
As they’re structural and can have a lot of weight behind them I would suggest using a professional to install a retaining wall.
You should also keep in mind that you need to check with your local council regarding retaining wall height restrictions.
Over certain heights you will need Council approval and to take into account engineering considerations.