Rosemary, outdoor survival? - Knowledgebase Question

College Point, NY
Question by VPM
November 13, 1997
Can the herb, Rosemary survive in Zone 6 over the winter? If possible, how do I go about protecting said herb?


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Answer from NGA
November 13, 1997

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It overwinters easily in Zones 8-10, and some professional growers have had luck keeping it alive in cooler climates, but the results are mixed. If the plant is too large to keep in your home for the winter, root some branches (a process called layering)in smaller pots to keep instead.

Fill a pot with moistened, well-drained potting medium (such as a cactus medium), and bend the Rosemary branch down to the soil surface. Pin the branch to the soil sruface with your finger, and allow a few inches of the branch end to extend beyond the your finger. Cover the pinned area with soil. The buried part of the branch will soon root, and you can then sever the branch from the parent plant. Rosemary likes bright light, but will dry out in the full sun of a south-facing window. Water and mist the plant frequently, and it should reward you with lush growth before long. You can dry the rest of the parent plant for use in savory recipies. Enjoy!

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