Outsidepride Amaranthus Molten Fire - 5000 Seeds Amaranthus Molten Fire grows as an annual in USDA Zones: 3 - 10. This ornamental plant loves to be in full sun and is heat resistant. These heirloom seeds are great for flower beds and gardens as a contrast to other foliage plants. Amaranthus Bicolor reaches a height of 32 inches tall and has crimson and maroon colored leaves that are perfect for cut flower arrangements. Sow these easy to grow seeds at 4 seeds per plant and keep moist until germinatin occurs. Our seeds are always Non-GMO and packaged for the current year.