Sweet marjoram, a low-growing plant native to the Mediterranean, makes a pretty summer groundcover or edging. A subtly colored plant, marjoram has thin, gray-green leaves and, in early summer, small knot-like flowers along the stem ranging in color from lilac to white. It grows well in the garden or in containers, and you can plant a nice kitchen window box using marjoram with parsley, basil, and summer annuals.
 
Pick fresh marjoram leaves as needed, beginning 4 to 6 weeks after planting.Marjoram is a very useful herb, as it keeps its full flavor even when dried. In order to dry marjoram, pick the leaves just after flower buds appear but before they open, removing no more than a third of the plant's leaves in a single harvest. Once the leaves have dried, strip them from the stem. You may harvest again when flower buds reappear later in the season.