Spearmint is an easy to grow herb that bears pretty lilac flowers in summer. The leaves have a fresh spearmint flavor with a cool menthol aroma. It can become invasive, so plant it in a pot or an area where it can be controlled. Garnish salads and desserts with fresh sprigs to improve digestion. A valuable herb for treating indigestion and headaches. Height: 18-24" Perennial. Zones: 3-10 (Sun/Part-sun)