(80-100 days. Rosmarinus officinalis) A favorite in herb gardens everywhere, this woody and aromatic perennial herb has a distinctive flavor and scent with a multitude of medicinal and culinary purposes. Rosemary is an essential ingredient for holiday turkeys, but it adds a wonderful flavor to meats, other poultry and vegetables too. A great addition to potpourris. Rosemary is a great choice for ornamental plantings or containers and is often trained as a topiary. Plants tolerate light frost.