- Species and varieties: The Oxheart tomato (Solanum lycopersicum) is a variety of heirloom tomato known for its large, heart-shaped fruits. It comes in several varieties, including 'Pink Oxheart', 'Red Oxheart', and 'White Oxheart'. These tomatoes are prized for their meaty texture and rich, sweet flavor.
- Hybrid or heirloom: Oxheart tomatoes are heirloom varieties, meaning they are open-pollinated and have been passed down through generations. They are not hybrids, which makes them ideal for gardeners who wish to save seeds from year to year.
- Pruning and training: Oxheart tomatoes benefit from regular pruning and training. Remove suckers (the small shoots that grow between the main stem and branches) to encourage better air circulation and fruit production. Support the plants with stakes or cages to keep the heavy fruits off the ground and prevent disease.
- Fertilization needs: Tomatoes are heavy feeders and require regular fertilization. Use a balanced fertilizer (such as 10-10-10) or a fertilizer specifically formulated for tomatoes. Apply fertilizer at planting time and then every 4-6 weeks throughout the growing season. Additionally, incorporating compost or well-rotted manure into the soil can provide essential nutrients and improve soil structure.
- Hardiness zones: Oxheart tomatoes can be grown in USDA hardiness zones 3-11. They thrive in warm climates and require a long growing season to produce their large fruits.
- Climate requirements: These tomatoes require full sun and warm temperatures to grow successfully. They need at least 6-8 hours of direct sunlight per day and prefer temperatures between 70-85°F (21-29°C). They are sensitive to frost and should be planted after the last frost date in your area.