To grow lettuce in a container, you will need a container that is at least 6-8 inches deep with drainage holes at the bottom. Fill the container with potting soil and plant lettuce seeds or seedlings about 6 inches apart. Place the container in a location that receives 6-8 hours of sunlight per day. Water the lettuce regularly, keeping the soil consistently moist but not waterlogged. You can also fertilize the lettuce with a balanced fertilizer every couple of weeks. Harvest the outer leaves as needed, and your container-grown lettuce should thrive!
