Growing Oregano

Oregano is a half hardy perennial with small green leaves and purple (sometimes pinkish) flowers. It reaches a height of 12 to 18 inches. The common term 'oregano' can refer to a number of plants, some of which have very little flavor. The Greek oregano (Vulgare hirtum) is considered the most flavorful for cooking purposes, although Italian oregano is also used. I should add here that marjoram is