Seed Count 20 Tomato Black Prince Tomato Black Prince. A wonderful Russian Heirloom from Irkutsk Siberia. The 5 oz. medium sized tomatoes are round & very uniform, the color is a wonderful deep blackish-chocolate brown with a smooth deep sweet flavor & great balance. A unique salad tomato, the plants produce a large crop & early. Indeterminate. Cultivation Advice Tomato Black Prince Sow in spring 1/16 inch deep. Germination takes around 6-14 days at 65-75F. Transplant the seedlings when large enough to handle into 3 inch pots. Grow on under cooler conditions & when about 8 inches tall, either plant in their growing position in the greenhouse or gradually acclimatise them to outdoor conditions & plant out 18 inches apart in a warm & sunny spot in moist, fertile well drained soil & keep watered. What’s the difference between indeterminate & determinate tomatoes? Determinate tomatoes, or bush tomatoes, are varieties that grow to a compact height (generally 3 - 4). Determinates stop growing when fruit sets on the top bud. All the tomatoes from the plant ripen at approximately the same time (usually over period of 1- 2 weeks). They require a limited amount of staking for support & are perfectly suited for container planting. Indeterminate tomatoes will grow & produce fruit until killed by frost. They can reach heights of up to 12 feet although 6 feet is normal. Indeterminates will bloom, set new fruit & ripen fruit all at the same time throughout the season. They require substantial staking for support & benefit from being constrained to a central growing stem. Vegetable - Tomato Black Prince 20 Premium Quality Seeds