Companion planting is a bit more than just the general notion that some specific plants can benefit others if they are planted close to each other. It has been defined as planting two or more crop species together to achieve benefits such as higher yields and pest control.
It allows you to grow herbs, veggies and exotic crops to their full potential. The process also helps to keep insects away, as well as helping you to maintain healthy soil.
| Fruits | Friends | Foes |
| Apricot | Chives, garlic, leeks, nasturtium, and daffodils | Peppers and chillis |
| Aubergines / EggPlant | Potatoes | Peppers, figs, kiwi, pomegranate |
| Blackberries | Strawberries, grapes, pine trees, oak trees, yarrow and dewberries | Tomatoes |
| Citrus Fruits | Yarrow, dill, fennel, nasturtium, lemon balm | Maize, cowpea, sorghum and sweet potatoes |
| Cucumber | Beans and peas, sunflower, nasturtium | Potatoes and aromatic herbs |
| Figs | Lemon balm, dandelions, borage, mustards, marigold | Eggplants |
| Gooseberries | Yarrow, pine and oak trees | Tomatoes |
| Grapes | Chives, geraniums, mustards, oregano, peas, clover and blackberries | Cabbage, radishes and potatoes |
| Grapefruit | Thyme, yarrow, companion dill, borage, calendula and cosmos | Cabbages and spinach |
| Kiwi | Carrots, swiss chard, spinach | Eggplants |
| Melon | Pigweed, chamomile, summer savoury, sow thistle | Peas and beans |
| Olives | Thyme, borage, calendula, wormwood | All plants with small leaves as they do not provide a good shade | Passion Fruit | Strawberries |
| Peach | Basil, tansy, southernwood | Corn, cowpeas, sweet potatoes |
| Pineapples | Clover, chives, garlic, southernwood, daffodils | Walnut trees and eucalyptus |
| Pomegranate | Basil, thyme, summer savoury | Eggplants |
| Raspberries | Tansy | Peas, beans and other nitrogenous plants |
| Strawberries | Bush beans, lettuce, onions, passion fruits, blackberries and spinach | All members of the cabbage family, brocolli |
| Tomatoes | Cabbage, broccoli, roses, asparagus, aubergines, nasturtium | Peppers and chillis, beets, brassicas, rosemary, blackberries, gooseberries, sweetcorn |
| Vegetables | Friends | Foes |
| Artichoke | Beans and peas | |
| Asparagus | Onion, potatoes and garlic | |
| Beetroot | Runner or pole beans | |
| Broadbeans | Cucumber, nasturtium, raspberries, squash | Fennel, melon, soybeans and dry beans, brocolli artichoke |
| Brocolli and Calabrese | Tomatoes, nasturtium | Peppers, beans, strawberries |
| Brussel Sprouts | Mustards, nightshades | |
| Cabbage | Tomatoes | Grapes, grapefruit |
| Carrots | Kiwi | Dill, parsnip and radish |
| Cauliflower | Dill, parsnip and radishes | |
| Celeriac | Aster flowers and corn | |
| Celery | Cabbage | Sweetcorn, Shallots, Lettuce, Beans |
| Courgette | Corn and aster flowers | |
| French beans | Cucumber, nasturtium, raspberries, squash | Fennel, soybeans, melon, artichoke, brocolli |
| Kale | Peppers | |
| Kohlrabi | Pole beans | |
| Leeks | Apricot | Swiss chard |
| Lettuce | Strawberries | Cabbage, celery, parsley |
| Maize | Squash | Citrus Fruits, peach |
| Mushrooms | All plants with small leaves as they do not provide good shade | |
| Onion | Strawberries | Peas, asparagus and lentils |
| Pak Choi | Peas | |
| Parsnip | Lettuce, cauliflower, onions, carrots | |
| Peas and Mange Tout | Cucumber, grapes, raspberries | Pak Choi, onions, peppers, melon, peach |
| Potatoes | Aubergines | Carrot, cucumber, asparagus, pumpkin, grapes, squash |
| Radish | Grapes, cauliflower, carrots | |
| Runner Beans | Cucumber, nasturtium, raspberries, squash | Celery, grapes, melon, beetroot, artichoke |
| Shallots | Grapes, celery, peppers | |
| Spinach and Swiss Chard | Kiwi, strawberries | Leeks, grapefruit and strawberries |
| Spring Onion | Lentils and peas | |
| Squash | Corn, beans, okra, sunflower | Potatoes |
| Sweetcorn | Squash, pumpkins, pole beans | Celery, celeriac, courgette and tomatoes |
| Sweet potato | Cabbage, corn, cauliflower, peach, citrus fruits | |
| Turnip | Hedge mustard and knotweed |
| Herbs & Spices | Friends | Foes |
| Basil | Tomato, oregano, petunias, grapes, peach, pomegranate, peppers and chillis | Thyme, common rue, cucumber |
| Chamomile | Most herbs, cucumber, onion, cabbage, melon | Potatoes, cucumber and radish |
| Chervil | Radish, broccoli, lettuce | Radish |
| Peppers and chillis | Alliums, basil | Apricots, tomatoes, aubergines, brocolli, kale, black walnuts |
| Chives | Roses, apples, carrots, apricot, pineapples and grapes | Beans, cucumber and peas |
| Coffee plant | Potatoes, kale, beans | Pumpkins, carrots and cucumbers |
| Comfrey | Nutrient accumulators or mulch | Walnut and eucalyptus trees |
| Cumin | Cucumbers, potatoes, cabbages | Peas and beans |
| Curry leaves | Tomatoes, onions and garlic | Eggplants |
| Coriander | Chervil, anise, cabbages and carrots | Dill, cucumber |
| Dill | Coriander, cabbages, carrots and anise, grapefruit, citrus fruits | Carrots, cauliflower, cilantro or coriander |
| Fennel | Citrus fruits | Cucumber, french beans, broadbeans |
| Ginger | Spinach, carrots, eggplants, spinach, eggplants | Walnut trees |
| Garlic | Apricot, Pineapples | Asparagus |
| Lavender | Lettuce, onions, tomatoes, oregano, sage, rosemary, basil, lemon, Pelargonium | Common rue and thyme |
| Lemon balm | Eggplant, figs, citrus fruits | Mustards, cucumber and mints |
| Lemongrass | Peppers and tomatoes | Plants that consume a lot of water, such as the eucalyptus |
| Mint | Eggplant, lettuce, peas, broccolli | Lavender, cucumber, dill, cilantro |
| Mustard | Carrots, corn, cucumbers, figs, grapes | Lemon balm, cabbages, brussel sprouts and grapes |
| Mizuna and Mibuna | Beetroot and beans | Thyme and common rue |
| Oregano | Peppers, pumpkin, grapes | Radish, potatoes, cucumber, common rue, thyme |
| Parsley | Apple, asparagus, corn, tomatoes | Common rue and thyme |
| Rosemary | Beans, brassicas, and carrots | Peas and beans, cucumber |
| Saffron | Sea holly, lanceolate leaves and Chinese chives | Plants belonging to the allium family |
| Sage | Rosemary, cabbages, beans | Any member of the allium family |
| Sorrel | Strawberries, cabbage and tomatoes | Alliums and lettuce |
| Tarragon | Eggplants and most vegetables | Common rue, cucumber and members of the allium family |
| Tea | Beans, potatoes and peas | Walnut trees and other water-consuming plants |
| Thyme | Cabbage, potato, strawberries, grapefruit, olives, pomegranate and Brussels sprouts | Common rue, cucumber and allium family crops |
| Vanilla | Banana plants and arrowroots (plants that can provide good shade) | Peas and beans |
| Yarrow | Aromatic plants, pelargonium, grapefruit, blackberries, gooseberries, citrus fruits | Allium family plants and common rue |
