Companion Planting Chart for Vegetable Gardens
See which plants make good neighbors and which ones to keep apart in your garden.
| Plant | ✅ Grows well with | ⛔ Keep apart from | Why |
|---|---|---|---|
| Basil | Tomato, Pepper, Marigold, Oregano | Rue, Sage | Repels tomato hornworms and improves the flavor of nearby tomatoes. Requires more water than sage. |
| Bean | Corn, Squash, Cucumber, Strawberry, Rosemary | Onion, Garlic, Chives, Leek | Fixes nitrogen in the soil. Classic 'Three Sisters' partner with corn and squash. Stunted by alliums. |
| Cabbage | Onion, Garlic, Marigold, Nasturtium, Mint | Tomato, Bean, Strawberry, Mustard | Aromatic herbs and alliums confuse cabbage moths. Nasturtiums act as a trap crop for aphids. |
| Carrot | Onion, Leek, Rosemary, Tomato, Bean | Dill, Parsnip, Anise | Onions and rosemary repel the carrot rust fly. Dill can stunt carrot growth. |
| Chives | Carrot, Tomato, Strawberry, Rose | Bean, Pea, Asparagus | Improves growth and flavor of tomatoes and carrots. Deters aphids but harms legume development. |
| Corn | Bean, Squash, Cucumber, Melon, Pea, Sunflower | Tomato, Celery | Provides sturdy stalks for beans to climb. Tomatoes and corn share the same devastating worm pests. |
| Cucumber | Bean, Corn, Pea, Radish, Sunflower | Potato, Sage, Melon | Radishes help deter cucumber beetles. Sunflowers and corn can provide a natural trellis. |
| Dill | Cabbage, Onion, Lettuce, Cucumber | Carrot, Tomato, Fennel | Attracts beneficial insects like predatory wasps. Avoid planting near carrots to prevent cross-pollination/stunting. |
| Garlic | Rose, Cabbage, Fruit trees, Tomato, Spinach | Bean, Pea, Asparagus, Parsley | Accumulates sulfur which acts as a powerful natural fungicide and deters aphids and Japanese beetles. |
| Lettuce | Radish, Carrot, Cucumber, Strawberry, Onion | Cabbage, Parsley, Celery | Benefits from the light shade of taller plants like corn or tomatoes during hot summer months. |
| Marigold | Tomato, Pepper, Cucumber, Bean, Melon | None | Roots secrete a chemical that kills root-knot nematodes. Excellent general pest deterrent. |
| Mint | Cabbage, Tomato, Radish, Pea | Parsley, Chamomile | Repels cabbage moths and ants. Highly invasive; best planted in containers near the garden. |
| Nasturtium | Cabbage, Radish, Squash, Cucumber, Tomato | None | Acts as a trap crop for aphids and squash bugs, drawing them away from main vegetable crops. |
| Onion | Carrot, Cabbage, Strawberry, Lettuce, Chamomile | Bean, Pea, Asparagus | Strong scent masks vulnerable plants from pests, but onions stunt the growth of legumes. |
| Parsley | Asparagus, Tomato, Carrot, Chives, Rose | Mint, Lettuce, Alliums (in large amounts) | Allowed to bloom, it attracts hoverflies and swallowtail butterflies which manage garden pests. |
| Pea | Carrot, Turnip, Radish, Cucumber, Bean | Onion, Garlic, Chives | Excellent nitrogen fixer. Like beans, their growth is heavily inhibited by the allium family. |
| Pepper | Basil, Onion, Spinach, Tomato, Marigold | Bean, Kohlrabi, Fennel | Basil helps maintain soil moisture and repels pests. Spinach acts as a good living mulch. |
| Radish | Cucumber, Lettuce, Pea, Spinach, Squash | Hyssop, Potato | Fast grower that breaks up hard soil. Used as a trap crop for flea beetles and leafminers. |
| Rosemary | Cabbage, Bean, Carrot, Sage | Basil, Pumpkin | Strong scent deters cabbage moths, bean beetles, and carrot rust flies. Prefers drier soil than basil. |
| Spinach | Strawberry, Cabbage, Radish, Pea, Eggplant | Potato | Provides excellent ground cover that retains moisture. Deep roots of other plants don't compete with it. |
| Squash | Corn, Bean, Nasturtium, Radish, Marigold | Potato, Pumpkin | Large leaves shade the soil and prevent weeds (Three Sisters method). Nasturtium deters squash bugs. |
| Strawberry | Bush bean, Spinach, Borage, Lettuce, Onion | Cabbage, Broccoli, Cauliflower, Melon | Borage attracts pollinators and is said to enhance the sweet flavor of strawberries. |
| Sunflower | Corn, Cucumber, Squash, Bean | Potato, Pole Beans (competes for height) | Provides shade and a trellis for climbers. Can secrete toxins from roots that inhibit potatoes. |
| Tomato | Basil, Marigold, Garlic, Carrot, Onion | Cabbage, Potato, Corn, Fennel | Basil improves flavor and deters pests. Corn and tomatoes share the same worm pest. |
No match.
Based on traditional gardening wisdom — results can vary with soil, climate, and local conditions.