Not all lavender is, well, lavender in color. Varieties of this fragrant herb come in shades of purple and blue ranging from light to dark, as well as white, red, pink, and even yellow-green. Group several plants of one color together for a strong visual impact. 'Richard Gray' is a hybrid lavender with blue-violet flowers and silvery, woolly foliage, while 'Nana Alba' is a dwarf English cultivar with very fragrant white flowers. It grows compactly and will bloom again.