The tomato plant grows well in both a garden environment and a container, when space is limited. Tomatoes varieties range from cherry tomatoes, dwarf plants and abundant fruit-producing plants. Choose a tomato variety that meets your plant size requirement and desired fruit size, because most varieties grow well in a container. Treat tomato plants similar to flowers you grow in a patio container environment and provide water regularly because containers dry out quickly.
Select a growing container that is a minimum of 12 inches in height and diameter and has bottom drainage holes for the tomato plant. Place a piece of wire mesh across the bottom of the container to prevent soil from leaching through the drainage holes.
Use a well-draining and nutrient rich potting soil and add an even amount of peat moss and perlite to create a growing mixture for tomato plants. Add a slow-release tomato fertilizer to the soil, based on the package instructions for the quantity of soil used to plant the tomato.
Fill the planting container approximately two-thirds full of amended soil. Set the tomato plant into the container so the first set of leaves is just above the rim of the container. Fill soil around the tomato root ball and stem so the plant is set deep into the container.
Place the tomato plant in an area on the patio that receives full sunlight and protection from wind. Strong winds might knock the plant and container over and damage the branches.
Water the soil until it runs out the drainage holes. Water the soil in the container three to four times a week to prevent the soil from drying out. You may need to water more frequently in the summer, if it hasn't rained.
Set a support cage around the tomato plant and secure it into the container soil. Train the tomato plant branches through the support cage as it grows larger. The cage will support the fruiting branches and prevent damage to the plant structure.