Answer: There are so many plants you could use, depending on the look you are after and the size you have in mind as well as the growing conditions in your garden. A traditional edger is tiny boxwoods clipped into a hedge. You could use a low growing sedum or an herb such as thyme if you want a perennial edger, or a line of little French marigolds for annuals. In shade you might try an edger of tiny hostas.
Q&A Library Searching Tips