salvia ‘Black and Blue’ Salvia guaranitica 'Black and Blue' Type:annuals — color all summer, flowering annuals Hardiness:Zone 8 – 10 Mature Height:18-24in Light:sun (8+ hrs) Water:drought tolerant, requires regular watering Bloom Color:black, blue Bloom Time:fall, summer Foliage:green Description ‘Black and Blue’ has the most amazing deep blue blooms with black stems.