Other Names: Pigweed. Life Cycle: Summer annual. Description: Spiny amaranth is the most common of the pigweeds found in Kentucky's pastures. It can be distinguished from other pigweeds by the pair of spines at the base of the leaf petiole and the central stem. Every seed variety undergoes organic cultivation and self-testing on our South African, Botswanan, Zambian, and Tanzanian farms. Our commitment lies in offering a diverse selection of organically grown, open-pollinated, Non-GMO seeds, proudly produced and acclimated locally. Before planting, please verify the conditions in your area suitable for the specific seed type. Growth rates and germination times hinge on various factors like soil conditions, rainfall/watering patterns, climate, and more. The outcome of growth and harvest may be influenced by these conditions.