- Species and varieties: Black waxy corn, also known as black sticky corn, is a variety of Zea mays. It is a type of waxy corn that is known for its dark, almost black kernels and sticky texture when cooked. This variety is popular in Asian cuisine, particularly in China and Southeast Asia.
- Hybrid or heirloom: Black waxy corn can be found in both hybrid and heirloom varieties. Heirloom varieties are often prized for their traditional flavors and historical significance, while hybrid varieties may offer improved disease resistance and yield.
- Pruning and training: Black waxy corn does not require pruning or training. However, it is important to ensure proper spacing between plants to allow for adequate air circulation and sunlight penetration. Plant seeds about 1 inch deep and 6 to 12 inches apart in rows that are 30 to 36 inches apart.
- Fertilization needs: Black waxy corn benefits from a balanced fertilizer applied at planting and again when the plants are about knee-high. A fertilizer with a higher nitrogen content is recommended to support healthy growth. Additionally, side-dressing with compost or a nitrogen-rich fertilizer during the growing season can help promote robust development.
- Hardiness zones: Black waxy corn is typically grown in USDA hardiness zones 4 through 9. It requires a warm growing season with temperatures between 60°F and 95°F (15°C to 35°C).
- Climate requirements: This corn variety thrives in full sun and well-drained soil. It requires a growing season of at least 70 to 100 days of warm weather. Black waxy corn is sensitive to frost and should be planted after the last frost date in spring.