Brandywine tomatoes can bear fruit up to 1.5 lbs (0.7 kg), requiring 80 to 100 days to reach maturity, making it among the slowest maturing varieties of common tomato cultivars. Brandywine has been described as having a "great tomatoey flavor", (others have called it a sandwich sized tomato that is offset by a wonderful acidity), leading to heavy usage despite the original cultivar's relatively low yield per plant.
Brandywine tomatoes need regular watering especially throughout the growing season. You could either moderately water them daily or thoroughly once a week. Careful watering of this variety does not only feed the plants with more water, but it eliminates the chances of many types of parasites that can affect this delicate plant.
Similar to other tomato varieties, the Brandywine tomatoes are heavy feeders. It is advisable that you apply an 18-18-21 nitrogen, phosphorous, potassium water-soluble starter fertilizer to the Brandywine plants. Mix 1 tablespoon of fertilizer with 1 gallon of water. Pour 1 cup of the fertilizer mixture around the plant. Fertilize the tomato plant the same way two additional times, once every 14 days. When the plant starts flowering, fertilize the Brandywine tomato with a nitrogen fertilizer. Apply a 20-00-00 or similar slow-release fertilizer at a rate of 1 tablespoon per plant. Water the area to activate the fertilizer and reapply the fertilizer every 4 to 6 weeks.
Because of the amount of foliage, Brandywine tomatoes need to be pruned to prevent them from getting leggy. In addition, you should grow Brandywines on stakes because of their propensity to grow tall and droop.
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