If you are updating your landscaping, you have many options to choose from. One thing to consider is using gravel rocks for landscaping. Below are two ways you can use this to make your landscaping much more beautiful. Use As Edging for Flower Gardens If you have flower gardens as part of your landscaping, you should consider using gravel rocks as an edging for the gardens. An edging is beneficial, as it prevents weeds and grass from getting into the garden.