Basil
Compact, useful, and easy to harvest near tomatoes.
Tomato companion plants
Tomato companion plants for raised beds
Tomatoes can pair well with compact herbs and greens, but the tomato plant is still the anchor. Give it support, airflow, and enough room first.
Good practical companions
Basil, lettuce, scallions, carrots, radishes, and some flowers can fit around supported tomatoes when they do not block airflow.
Use early-season gaps
Fast greens and radishes can use space while tomato plants are still small, then finish before the canopy fills in.
Avoid tomato crowding
More companion plants are not automatically better. Crowded tomato beds are harder to prune, water, and inspect.
Lettuce
Works early or in light shade before summer heat peaks.
Carrots
Can use open soil if tomatoes are not shading the whole bed.
Frequently asked questions
How many tomato companion plants should I add?
Add companions only after the tomato count, support, and access are realistic for the bed size.
Next step
Calculate tomato count first, then use the spacing chart to pick small companion crops. Open the calculator with these defaults, or check the monthly sowing calendar before you plant.