A regal, upright grower to 2 ft, grapefruit mint is a little slower to become invasive. The large, slightly wavy leaves have a zesty citrus flavor that is excellent in teas and chopped fresh into salads - think cold seafood salad in the summer with this chopped in to add a bit of flavor. If you allow it to flower in late summer the long lilac flowers can be used in bouquets. Over time it can become invasive, so best grown in a large pot.