Answer: Each type of container has its own advantages and disadvantages. Plastic or wood hold up best in the weather. Pressed peatmoss will disintegrate in about two season, and they seem to wick water away from the soil and evaporate it in a hurry. Terra-cotta containers are heavy, which is okay it it's sitting on a flat surface, but risky hanging. Terra-cotta also wicks water away rather quickly. Self-watering pots may keep the bottom of the soil too moist and lead to root-rot. I'd settle on a plain plastic or wooden container with lots of drainage holes in the bottoms. Your tomato plants will need 6-8 inches of soil depth to accommodate the root mass, so choose a container that's at least that deep, and fill it with quick-draining potting soil.
Q&A Library Searching Tips