| Vegetables
|
| Common name |
scientific name |
Helps |
Helped by |
Attracts |
Repels / Distracts |
Avoid |
Comments
|
| Alliums |
Allium |
fruit trees, nightshades (tomatoes, peppers, potatoes, etc), brassicas (cabbage, broccoli, kohlrabi, etc) carrots |
carrots |
|
slugs, aphids, carrot fly, cabbage worms[1] |
beans, peas, parsley |
Alliums include onions, garlic, leeks, shallots, chives, and others
|
| Brassicas |
Brassica |
|
geraniums, dill, alliums (onions, shallots, garlic, etc), rosemary, nasturtium, borage |
|
|
mustards, nightshades (tomatoes, peppers, etc) |
Brassicas are a family of species which include broccoli, cabbage, brussels sprouts, kholrabi, and cauliflower.
|
| Nightshades |
Solanaceae |
|
carrots, alliums, mints (basil, oregano, etc) |
|
|
beans, black walnuts, corn, fennel, dill, brassica (broccoli, cabbage, cauliflower, etc) |
Nightshade plants include tomatoes, tobacco, chili peppers (including bell peppers), potatoes, eggplant, and others
|
| Beans, |
Phaseolus |
Corn (see Three Sisters), Spinach, lettuce, rosemary, summer savory, dill, carrots, brassicas, beets, radish, strawberry and cucumbers |
Eggplant, Summer savory |
|
California beetles |
Tomatoes, chili peppers, sunflowers, alliums (onions, garlic, etc), kales (cabbage, broccoli, etc) |
Hosts nitrogen-fixing bacteria, a good fertilizer for some plants, too much for others
|
| Broccoli |
Brassica oleracea |
|
geraniums, dill, alliums, rosemary, nasturtium, borage |
|
|
mustards, Tomatoes, peppers |
Rosemary repels cabbage fly, geraniums trap cabbage worms, same general companion profile as all brassica (cabbage, kolhrabi, brussels sprouts, cauliflower, etc)
|
| Carrots |
Daucus carota |
Tomatoes, Alliums (onions, chives, etc), lettuce |
alliums (leeks, shallots, etc), rosemary, wormwood, sage, beans, flax |
assassin bug, lacewing, parasitic wasp, yellow jacket and other predatory wasps |
|
Dill, parsnip, radish |
Tomatoes grow better with carrots, but may stunt the carrots' growth. Beans (which are bad for tomatoes) provide the nitrogen carrots need more than some other vegetables. Aromatic companion plants repel carrot fly. Sage, rosemary, and radishes are recommended by some as companion plants, but listed by others as incompatible. alliums interplanted with carrots confuse onion and carrot flies. For the beneficial insect-attracting properties of carrots to work, they need to be allowed to flower; Otherwise, use the wild carrot, Queen Anne's Lace, for the same effect. Flax produces an oil that may protect root vegetables like carrots from some pests.
|
| Corn / Maize |
Zea mays |
beans |
Sunflowers, legumes (beans, peas, soybeans etc), peanuts, curcubits (squash, cucumbers, melons, etc), amaranth, white geranium, lamb's quarters, morning glory, parsley, and potato |
|
|
Tomato, Celery |
provides beans with a trellis, is protected from predators and dryness by cucurbits, in the three sisters technique
|
| Cucumber |
Cucumis Sativus |
|
Nasturtiums, radishes, marigolds, sunflowers peas, beets, carrots, and Dill |
Beneficial for ground beetles |
|
Tomato, Sage |
|
| Peppers |
Solanaceae, Capsicum |
themselves, marjoram |
tomatoes, geraniums, petunias |
|
|
beans, kale (cabbage, brussels sprouts, etc) |
Pepper plants like high humidity, which can be helped along by planting with some kind of dense-leaf or ground-cover companion, like majoram and basil; they also need direct sunlight, but their fruit can be harmed by it...pepper plants grown together, or with tomatoes, can shelter the fruit from sunlight, and raises the humidity level.
|
| Onion |
Allium cepa |
Tomatoes, Kales (broccoli, cabbage, etc) |
Carrots |
|
aphids, carrot fly, other pests |
beans, peas, parsley |
Same companion traits as all other alliums (chives, garlic, shallots, leeks, etc)
|
| Potato |
Solanum tuberosum |
|
Horseradish |
|
|
Sunflower, Tomato, Cucumber |
horseradish increases the disease resistance of potatoes
|
| Spinach |
Spinacia oleracea |
|
Peas, Beans |
|
|
|
The peas and beans provide natural shade for the spinach
|
| Tomatoes |
Solanum lycopersicum |
roses, peppers, asparagus |
basil, oregano, parsley, carrots, marigold, Alliums, celery, Geraniums, Petunias, Nasturtium, Borage |
|
asparagus beetle |
Black walnut, corn, fennel, peas, dill, potatoes, beetroot, kales (kohlrabi, cabbage, etc), rosemary |
Black walnuts inhibit tomato growth, in fact they are allelopathic to all other nightshade plants (chili pepper, potato, tobacco, petunia) as well, because it produces a chemical called juglone.
|
