Finally! An Agapanthus we can plant in East Coast gardens! Ordinarily, the genus is too tender to overwinter in the soil but 'Northern Star' is different. Yes,the look is classic, with globes of dark blue star-shaped flowers sitting on tall stems in midsummer; however, the plant itself is hardy up to Zone 6. That includes Massachusetts, Connecticut, Rhode Island, downstate New York, and most of Pennsylvania. A British development, this cultivar has taken hold in Europe. Now we bring it over for American audiences. An important detail: it’s rabbit and deer resistant.