- Species and varieties: Red carrot seeds belong to the species Daucus carota. There are several varieties of red carrots, including 'Atomic Red', 'Red Samurai', and 'Dragon'. These varieties are known for their vibrant red color, which is due to the presence of lycopene, an antioxidant.
- Hybrid or heirloom: Red carrot seeds can be both hybrid and heirloom. For example, 'Atomic Red' is often a hybrid variety, while 'Dragon' can be found as an heirloom variety. Heirloom varieties are open-pollinated and have been passed down through generations, while hybrid varieties are bred for specific traits such as disease resistance and uniformity.
- Pruning and training: Carrots do not require pruning or training. However, thinning is necessary to ensure proper root development. Thin seedlings to about 2-3 inches apart once they are a few inches tall.
- Fertilization needs: Carrots benefit from a balanced fertilizer. Before planting, incorporate compost or a balanced fertilizer into the soil. During the growing season, side-dress with a low-nitrogen fertilizer to promote root development. Avoid high-nitrogen fertilizers as they can lead to excessive foliage growth at the expense of root development.
- Hardiness zones: Red carrots can be grown in USDA hardiness zones 3-10. They are quite adaptable and can be grown in a wide range of climates.
- Climate requirements: Red carrots prefer cool to moderate climates. They grow best in temperatures between 55°F and 75°F (13°C to 24°C). Carrots require full sun but can tolerate partial shade. They need well-drained, loose soil with a pH between 6.0 and 6.8.