There is no getting bored with lemon verbenaΓÇÖs sweet citrus fragrance. The oval, bright green leaves make exquisite tea. Because their flavor is delicate, be prepared to use rather a lot of fresh leaves. For example, if you wish to replace vanilla extract and infuse a custard with lemon verbena, it will take 1/2 cup finely snipped leaves for 1 teaspoon vanilla. Alternative: lemon grass or lemon zest.