Although Russian sage is not a "true sage," I've included it here for comparison. Growing to a height of 3-4 feet tall, Russian Sage has silvery foliage that glistens in the sunlight. Loaded with steely-blue flower spikes from mid-summer through fall, creating a misty-blue haze and an airy appearance, this plant looks great anywhere in the garden. Hardy in zones 3-9, Russian Sage thrives in full sun and well drained soil, and will even tolerate dry soil. This plant is dramatic in masses or as a specimen, for use in the middle to back of a mixed perennial border. Suitable for xeriscaping, in rock gardens, and for dried flower arrangements. It can be used effectively in combination with whites, yellows and silver foliage plants, including lamb's ear or wormwood.