The original tomato trees yield heavy harvests of juicy beefsteak style tomatoes up to 3 lbs each, when properly cared for. The Estonian version, known as Sprut f1 hybrid produces clusters of somewhat smaller tomatoes weighing in at 4.5 - 6 ounces each. Claims that it can produce "14,000 tomatoes" are doubtful, but not actually dis-proven or proven.
For seed germination the best temperature is between 70 and 75 degrees F. Germination at lower temperatures is feasible but slower and at a lower success rate.
Aside from the extensive trellising, Tomato Trees require basically the same care and growing conditions as most other tomato varieties.
Full Sun is best, a light shade won't hurt [much]. Water slowly and deeply . at least an inch of water weekly slightly more in sandy soils. Water 2-3 times weekly, more in dry hot weather. Water the ground around the plants base with as little as possible splashing on the foliage.