Bushy Lemon Balm (Melissa officinalis) has fine, heart-shaped leaves with scalloped edges and a sweet citrus scent. Clusters of tiny, white flowers appear in late summer. It's a perfect tea herb to grow for steaming hot mugs or tall cold glasses of natural lemon-scented iced tea. Little sprigs make attractive, edible garnishes for fruit drinks and sherbets. It blends well with other herbs, adds a mild citrus tang to salads, and makes an excellent alternative to Mint.