so are violets! (plus they both have medicinal uses too)
I like to candy them (egg white + superfine sugar) every winter as gifts for my cake-making friends!

and how timely a post SUNDOG as just this past weekend I was noticing the rain-renewed battle of these very two groundcovers near my living dogwood couch...mmmsweet berries and flowers! that corner seems healthy to me and I'm not sure either of these plants I would consider detrimental to the soil where they are growing. they are not so dense as to prevent other plants from invading though.

beans are nitrogen fixing i know. im sure there are certain types that are ground covers.