Champion tomatoes are an indeterminate or ‘vining’ type of tomato plant. The fruit is sweet and meaty and predominantly seed-free. Tomatoes are large and early, earlier than ‘Better Boy.’ A hybrid, Champion tomato plants can be grown in USDA zones 3 and warmer and is especially suited for the warm southern regions, as they tolerate both heat and dry conditions.. Mature Size: 3′-5′ x 2′-3′ after 2 months years. Full Sun (6+ Hours).