University of Maryland Extension


Virginia Williams

Rosmarinus officinalis

Rosemary plants shaped like little pine trees make popular holiday decorations.  An ancient Mediterranean plant, rosemary needs lots of sunlight--full sun if possible.  In winter, keep it cool (50-60 degrees) and water sparingly. Ironically, it also needs humidity, so spritz it occasionally and/or stand its pot on a tray of pebbles filled with water to avoid root rots and other stress-related diseases. Often hardy in Maryland, you can plant it outside in the warmest full sun micro-climate available with well-drained soil. Poor fertility soil is fine. The varieties alba ‘Arp’, ‘Madeline Hill’, or ‘Hill Hardy’ are among the hardiest.  Find the right spot and enjoy its many medicinal, culinary, aromatic, cosmetic and ornamental uses, not to mention bees love its blue flowers.

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