Marjoram is a perennial; however, in Colorado it is often treated as an annual since it rarely over-winters. One way to extend its life is to grow it in a container and bring it indoors for the winter. Summer savory is an annual as it will complete its lifecycle in one year. For more information on growing herbs in Colorado, see fact sheet Growing, Preserving and Using Herbs. ***
FAQ #34319
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Clarify whether sweet marjoram and savory are perennials or annuals in Colorado climate?
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