Chocolate mint is a close relative to ordinary peppermint (Mentha piperita). This hybrid is formed by crossing M. citrata (orange mint) with M. piperita to make the 'Chocolate' cultivar. It is a sterile hybrid plant that produces no seeds. It has an aroma of chocolate, but its taste resembles the orange citrus flavor of citrata mint. The plant grows about 2 feet tall and easily spreads by rhizomes into an attractive ground cover. The rounded, lance-shaped leaves are a darker green than other forms of mint. Its lavender-colored flowers appear in summer. This vigorous, fast-growing plant is sometimes grown as an annual in colder climates. It is typically planted in the spring after the last frost has passed. The plant will spread as far as it is allowed, though it is not particularly hard to keep within its boundaries. Chocolate mint is planted from nursery starts or stem cuttings. Chocolate mint grows best in rich, moist soil that is slightly acidic or neutral. Plant about 2 feet apart in spring after all danger of frost has passed. Although growing herbs in less than rich soil tend to concentrate their essential oils (and therefore their scent and flavor), mint prefers moist, rich, humusy soil, so it’s good to add some matter before planting. Mint is one of the few culinary herbs that prefer part shade. However, you can grow it in full sun if you provide adequate moisture.
