When working on landscaping ground cover there are several things you need to keep in mind. Ground cover is a low height plant that will spread quickly, allowing minimal upkeep. It not only looks great, but can help prevent erosion. Since they are known to spread rapidly, there are few that work very well for borders.
For borders, consider ground covers that spread slowly and that must be divided and transplanted to create a new plant rather than those that spread by creeping. These could make it difficult to maintain a border.
Consider plants such as a low Hosta variety, ferns like the Japanese Painted Fern, Prostrate Junipers, or Mondo Grass.
Another route to go for borders are slow growing groundcovers like the Serbian Bellflower. Avoid varieties that are described as “mat forming,” “aggressive” or “trailing” when you are looking for ground cover that will serve as a border.
Some ground cover requires a lot of maintenance. If you need to do a lot of work to keep them up it may not be something you want to do unless you are an avid gardener.
Many borders will have beautiful blooms, and others will just have foliage in shades of green. You will need to look at the big picture and decide what kind of color and shades you want for your border. If you already have very colorful flowers, you may not want to over do it.