Salvia nemorosa, or woodland sage, brightens the landscape with spikes of blue-violet flowers above gray-green foliage. A member of the mint family, this easy-to-grow perennial is deer- and rabbit ...

Salvia nemorosa, for example, can be grown as far north as zone 4, and shouldn't need any protection during December and January.However, if you are worried, it can help to bundle and group pots ...