Companion plants are those that work well together. Pairing them provides a benefit to one or both. At the same time, some plants should be kept apart. (Hmm… sounds a lot like people.)
When chosen carefully, companion plants can:
* deter pests and diseases
* improve tomato health
* improve tomato flavor
* act as “good neighbors”
There are several plants are considered excellent companions for tomatoes.
Tomatoes also return the favor for other plants in your garden.
And there are also some “tomato enemies” that you will want to steer clear from your tomato zone.
|Plant||Benefit for Tomato||Extra Tips|
|Basil (annual herb)||Repels whiteflies, mosquitoes, spider mites, aphids, hornworms
Improves pollination - attracts bees
Improves tomato health
Improves tomato flavor
|Plant 3 basil per tomato for best coverage|
|Borage (annual herb)||Repels tomato hornworm, cabbage worm
Improves tomato health
Improves tomato flavor
|May self-seed from year to year
Use leaves in salads
|Chives (bulbous herb)||Repels aphids||Tasty in salads|
|Garlic (bulbous herb)||Repels spider mites||Make your own insecticide by burying garlic cloves 1" in the ground around tomato plants|
|Marigolds (annual flower)||Repels nematodes, tomato worm, slugs, general garden pests||Some gardeners recommend French marigolds as best deterrents
Till marigolds into the soil at season end to deter nematodes further
|Mint (perennial herb)||Deters white cabbage moths, ants, rodents, flea beetles, fleas, aphids||Can be invasive. Plant in a submerged container to prevent mint from overtaking the garden|
|Nasturtium (annual flower)||Deters aphids, whiteflies, squash bugs, beetles
Wards off fungal diseases
|Doesn't compete for nutrients
May self-seed year to year
Makes an excellent garden edging
|Parsley (biennial herb)||Attracts hoverflies (which feast on tomato pests)||Dislikes heat|
|Plant||Benefit for Tomato||Benefit for Plant|
|Asparagus (perennial vegetable)||Asparagus produces a chemical shown to kill nematodes (pests that play havoc with roots)||Tomatoes repel the asparagus beetle|
|Plant||Benefit for Tomato|
|Carrot (annual vegetable)||Cultivation. Carrot roots break up soil around tomatoes, allowing in more nutrients, air, and water
Space saver. Carrots are ready to be harvested soon after tomatoes go in the ground
|Spinach; Lettuce (annual vegetables)||Space saver. Leaves are ready to be harvested soon after tomatoes are planted.|
|Black Walnut (deciduous tree)||Inhibits tomato growth by producing juglone, a compound that can be toxic or stunt growth in tomatoes
Generate walnut wilt
|Brassicas (cabbage, cauli, broccoli, brussel sprouts, kohlrabi)||Inhibit tomato growth|
|Corn (annual vegetable)||Common enemies: both corn and tomatoes attract the tomato fruitworm/corn earworm|
|Fennel (perennial herb)||Inhibits tomato growth|
|Potato (tuberous vegetable)||Cultivates susceptibility to early and late blight fungus|
|Dill (annual herb)||Young dill enhances tomato health and growth||Mature dill stunts tomato growth||Harvest dill before it gets too large|
|Plant||Benefit for Companion|
|Gooseberries (fruit shrub)||Tomato scent repels insects|
|Roses (perennial shrub)||Tomatoes protect interplanted roses from black spot|
Get more ideas on our Companion Planting for Tomatoes Pinterest board
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