Noun
winter savory (usually uncountable, plural winter savories)
A perennial herb, Satureja montana, used in cooking as a substitute for the annual summer savory.
Uses Dried summer savory leaves Both summer savory (Satureja hortensis) and winter savory (Satureja montana) are used to flavor food. Source: Internet
The former is preferred by cooks but as an annual is only available in summer; winter savory is an evergreen perennial. Source: Internet