Lavender is a bushy perennial growing from one to three feet tall. The needle-like foliage is blue-green to gray and has a balsam-like scent. The spike flowers are either lavender or white depending on the variety. Lavender is an excellent specimen plant and can be used as a small hedge if site and growing conditions are right. Lavender varieties in the English group and Lavandin group are considered to be preferred choices for Midwest gardening situations.