Ground covers

I have just read an interesting article on ground covers. Some of the varieties suggested to use are:autumn fern, Christmas fern for shade as they stay evergreen(mostly). Also tiarella cordifolia grows well in dry shade and comes in many varieties and has the benefit of being a native. For a sunny spot try blue-eyed grass (also a native) and Blue star creeper and sedums. Sweet woodruff is a favorite of mine because it has pretty blossoms early in the spring but the foliage stays nice all summer--also a shade plant. Mazus reptans, thyme, crested iris and oregano also do well in the sun. One I am trying in shade is ceratostigma plumbaginoides because it has wonderful blue flowers and leaves turn red in the fall. Another variety I am trying this year is stachys macrantha also referred to as big betony, has crumpled green leaves with blue flowers.