Outsidepride Black Cardamom Plant Seed - 50 Seeds Black Cardamom (Amomum subulatum) grows as a perennial in USDA Zones: 9 - 10 and thrives in full sun to light shade. Cardamom reaches 60 inches in height and has yellow-white blooms in early to mid summer. This herb was used in Chinese medicine to treat stomach ailments and malaria. This plant is perfect for any herb garden and is often used in the culinary world as a spice in breads and pastries and to flavor coffees and teas. Sow these heirloom seeds at 2 - 3 seeds per plant in well-drained soil and keep moist until germination occurs in 42 - 80 days. Our seeds are always Non-GMO and packaged for the current year.