Companion planting is an old and proven method of putting plants together so that the individual plant characteristics of one plant, enhances the growth of a different plant. The same principle is used to repel and or confuse pests. Vegetable and companion vegetable tables are available. The following companion plant list is herbs and vegetables.
Companion herbs for vegetables
| Beneficial Herb | Companion | Incompatible |
| Chamomile | Cabbage, onion | |
| Coriander | Anise | Fennel |
| Chive | Carrot | |
| Chervil | Radish | |
| Dill | cabbage, lettuce, onion, cucumber | Carrot |
| Fennel | Most vegetables, coriander | |
| Feverfew | ||
| Horseradish (1 plant in a corner) | Potato | |
| Hyssop | Cabbage, grape | Radish |
| Lavender | ||
| Lemon balm | ||
| Lovage | All plants by improving flavour | |
| Marjoram | All plants by improving flavour | |
| Mint | Cabbage, tomato | |
| Oregano | Broccoli | |
| Parsley | Tomato | |
| Rosemary | Cabbage, carrots | |
| Rue | Basil | |
| Sage | Cabbage family, carrot | Cucumber |
| Summer savory | All beans, onion | |
| Sweet basil | Tomato | Rue |
| Tarragon, French | ||
| Thyme | All | |
| Valerian | All |
If wanting more information on companion planting, there are books solely devoted to plant combinations. Carrots love Tomatoes and Roses love Garlic by Louise Riotte, published by Storey Communications, Inc. for McKenzie, Brandon, Manitoba.
