Peat moss combined with organic potting soil is a great medium to plant and grow tomatoes. Adding compost and organic materials to the peat moss will enable you to maintain a PH of 6.5 to 7.0 for ideal tomato-growing conditions. Peat moss will hold in moisture and nutrients to keep your plants blooming and producing large quantities of tomatoes.
Combine one part peat moss and one part composting material in a small bucket. Mix very well. You can use old plants, leaves, grass clippings or other items for the composting material.
Prepare slow-release tomato liquid fertilizer by the directions on the container. Pour the appropriate amount of the liquid fertilizer over the mixture.
Fill potting containers 1/2 full with the peat moss mixture. Dig a 1 inch hole in the center of the potting container. Repeat with each of the containers.
Grasp the tomato plant at the base and turn the seedling container or original container upside down. Gently tug and release the tomato plant. Flip the plant back over and set aside the original container.
Gently squeeze on the tomato plant root ball to loosen roots without damaging them. Place the root ball into the hole of the container. Push the peat moss mixture around the stem of the tomato plant.
Water the tomato plants when you are done planting them in the new containers. Place in a partially sunny location. You should water weekly depending on heat and sun intensity, and harvest when tomatoes are appropriate size.