Absolutely! Growing enough tomatoes for your family in a couple of urban planter boxes is not only possible but can be highly productive with the right approach. The key lies in strategic planning. First, select high-yielding, compact varieties suited for containers, such as prolific cherry tomatoes ('Sungold', 'Sweet Million'), determinate patio types ('Patio Choice Yellow'), or dwarf varieties. Ensure your planter boxes are large enough—at least 5 gallons per plant—with excellent drainage and placed in a location receiving a minimum of 6-8 hours of direct sunlight.
Maximize your yield by practicing vertical gardening. Use stakes, cages, or trellises to support indeterminate vines, freeing up ground space. Implement consistent watering to keep soil evenly moist and feed with a balanced, water-soluble fertilizer regularly. Through succession planting—staggering your seedlings—and diligent harvesting, you can extend your season. With proper care, just two well-maintained planter boxes hosting 3-4 robust plants can provide a steady, satisfying supply of fresh tomatoes for salads, sauces, and snacks throughout the growing season, turning your urban space into a fruitful mini-farm.