A pine-scented woody Mediterranean shrub that's beloved in roast meats, breads, and Mediterranean grilling — extraordinarily long-lived and traditionally associated with remembrance.
Reclassified to Salvia
In 2017, rosemary was reclassified from its own genus Rosmarinus to Salvia (the sage genus), based on genetic evidence. Most field guides and cookbooks still use the old Rosmarinus officinalis name, but the official taxonomic name is now Salvia rosmarinus.
The reclassification doesn’t change anything practical — rosemary still tastes like rosemary, not sage. But it reflects that modern taxonomy increasingly relies on DNA evidence rather than morphological similarity.
A long-lived woody perennial
Unlike most culinary herbs, rosemary is a woody shrub that lives for decades. Mature plants can reach 1.5-2 meters tall and live 20+ years in suitable Mediterranean climates. Rosemary plants in old Mediterranean gardens may be older than the gardeners tending them.
In cold climates, rosemary often dies in winter. Cold-hardy varieties (Arp especially) survive USDA zone 6 winters. In zones colder than that, rosemary is a tender perennial requiring overwintering indoors.
”Rosemary for remembrance”
Rosemary has been associated with remembrance and memory since ancient times — students wore rosemary garlands during exams in ancient Greece; mourners place rosemary on graves; Shakespeare’s Ophelia famously says “There’s rosemary, that’s for remembrance.”
Modern research suggests there might be biological grounding to this — some studies have shown that rosemary’s volatile compounds (specifically 1,8-cineole) may modestly improve cognitive performance when inhaled. The effect is small but reproducible in some experimental settings.
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