Growing fresh lettuce in urban planter boxes is a rewarding way to ensure a steady supply of greens for your family. To determine how many boxes you'll need, start with consumption. A small family of four might eat 4-6 heads of lettuce per week. Next, consider yield and timing. A standard 24-inch by 12-inch planter box can comfortably support about 4-6 lettuce plants, depending on the variety (loose-leaf varieties allow for denser planting than head lettuce). Each plant can yield multiple harvests through the "cut-and-come-again" method. Therefore, starting with 2 to 3 planter boxes is a practical baseline. Stagger your planting by sowing seeds in one box every 2-3 weeks. This succession planting creates a continuous harvest, not a single glut. Your first box will be ready for harvesting in about 30-45 days, just as the second box is maturing. Key factors include choosing a sunny location (at least 6 hours of sun), using quality potting mix, and consistent watering. With this simple rotational system, 2-3 well-managed planter boxes can provide a sustainable, fresh lettuce supply for your family's salads and sandwiches throughout the growing season.
How many urban planter boxes would I need to grow enough lettuce for a small family?
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