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Family: Lamiaceae (lay-mee-AY-see-ee) (Info) Genus: Salvia (SAL-vee-uh) (Info) Species: x sylvestris (sil-VESS-tris) (Info) Cultivar: Blue Queen Additional cultivar information: (aka Blaukoenigin, Blaukönigin)
Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
'Blue Queen' grows fast from seed, and is very attractive. My infromation says it can be planted in partial sun as well. Blooms May-June in my garden, though it is in a shadier spot.