Bricks

• Bricks provide a rustic look as an edging along a garden. They also last a long time and easily anchor in the ground. Bricks are cheap and can also be used even if they are damaged. Because they are short, you can use them to form a curve.
  
  

River Rocks

• River rocks can usually be purchased for an affordable price in bulk. They provide a natural look and have a permanent lifespan. Because the river rocks come in different sizes and shapes, you can interchange them to form an edging to your liking.
  
  

Plastic Strips

• Plastic strips are available at home improvement stores for affordable prices. They come in different colors and different heights to give landscapers plenty of options. They are also light and can be bent to fit the contour of a garden.