Sweet marjoram is the most widely available of several varieties, and it is usually simply called “marjoram.” It has oval, inch-long (2.5cm), pale green leaves and a delicate, sweet flavor. The leaves and flowers are used fresh or dried in salads, soups, stuffings, quiches and pies, omelets, and potato dishes.
There’s also a very hardy species called pot marjoram, which has a stronger, slightly bitter flavor.