- Species and varieties: Gomphrena globosa, commonly known as Globe Amaranth, is a species of flowering plant in the amaranth family. The purple variety is particularly popular for its vibrant color and long-lasting blooms.
- Hybrid or heirloom: Gomphrena seeds are typically heirloom varieties, meaning they are open-pollinated and can be saved and replanted year after year. However, some hybrid varieties may also be available, offering specific traits such as improved disease resistance or unique colors.
- Pruning and training: Gomphrena requires minimal pruning. Deadheading spent flowers can encourage more blooms and extend the flowering period. The plant has a naturally compact and bushy growth habit, so it does not require extensive training.
- Fertilization needs: Gomphrena is not a heavy feeder. A balanced, all-purpose fertilizer applied at planting time is usually sufficient. Over-fertilization can lead to excessive foliage growth at the expense of flowers. A light application of compost or organic matter can also benefit the plant.
- Hardiness zones: Gomphrena is suitable for USDA hardiness zones 2-11. It is a warm-season annual that thrives in hot, sunny climates.
- Climate requirements: Gomphrena prefers full sun and well-drained soil. It is drought-tolerant once established and can handle high temperatures, making it ideal for summer gardens. It does not perform well in cold, wet conditions.