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Herb Companion Planting
The table below summarises the major companion associations between members of the herb family and various vegetables as well as any natural insecticidal and pesticidal properties.
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| Herb | Companion for | Pests Repelled | Avoid |
| Allium (Onion Family) | vegetables, fruit trees | aphids, carrot flies, moles, tree borers, and weevils | peas and beans |
| Angelica (Angelica archangelica) | | | Dill |
| Basil (Ocimum basilicum) | Tomatoes | Flies, Mosquitoes | Rue |
| Bay leaves | beans or grains | weevils and moths | |
| Borage (Borago officinalis) | Tomatoes, Squash, Strawberries | Tomato Worm | |
| Caper Spurge or Mole Plant (Euphorbia lathyris | | Moles and Mice | poisonous, irritant milky sap |
| Caraway (Carum carvi) | Good for loosening the soil. | | Avoid Dill |
| Castor Oil Plant (Ricinus communis). | | Moles | seeds extremely poisonous |
| Catnip (Nepeta cataria) | Aubergine | Flea Beetle, Ants | |
| Chamomile (Chamaemilum nobile) | Cabbage, Onion | | |
| Coriander (Coriandrum sativum) | all vegetables | Aphids | attracts Bees |
| Chervil (Anthriscus cerefolium ) | Radish | | |
| Chives (Allium schoenoprasum) | Carrots | Root Flies | |
| Dill (Anethum graveolens) | Cabbage | | Carrots and Caraway |
| Fennel (Foeniculum vulgare) | | | Most plants |
| Feverfew (Chrysanthemum parthenium syn. Tanacetum parthenium) | Roses | attracts Aphids away | seeds freely |
| Garlic | Roses, Raspberries | Aphids | |
| Henbit (Lamium amplexicaule) | | General Insect Repellent | |
| Hyssop (Hyssopus officinalis ) | Cabbage, Grapes | Cabbage White Butterflies | Dislikes Radishes |
| Lavender (Lavandula angustifolia) | | Moths - make sachet with southernwood, wormwood and rosemary, use in doors | |
| Marigolds (Tagetes sp.) most have aromatic foliage | Good companion to most plants | Nematodes, Aphids and others | |
| Mexican marigold (Tagetes minuta), Muster-John-Henry | | Good insect repellant, inhibits ground-elder and some other weeds | |
| Mint (Mentha sp. ) | Cabbage, Tomatoes | Cabbage White Butterflies, Aphids, Flea Beetles | invasive roots |
| Mustard (Brassica juncea) | cabbage, cauliflower, radish, brussel sprouts, turnips, and kohlrabi | a trap crop to attract many insect pests | |
| Nasturtium (Tropaeolum majus) | Radishes, Cabbage, Squashes and Pumpkims, fruit trees | Aphids, Squash Bugs, Striped Pumpkin Beetle | |
| Oregano(Origanum vulgare) | Brassicas | Cabbage Butterflies | |
| Pennyroyal (Mentha pulegium ) | Roses | Flies, Mosquitoes, Fleas, others | invasive roots |
| Petunia (Petunia hybrida) | Beans | | |
| Pot Marigold (Calendula officinalis) | Tomatoes | Tomato Worm, Asparagus Beetles, Whitefly | |
| Pyrethrums (Chrysanthemum cinaeriofolium) | | Dried flower heads make an insecticide. | |
| Rosemary (Rosmarinus officinalis | Cabbage, Beans, Carrots, Sage | Cabbage Butterflies, Bean Beetle, Carrot Fly | |
| Rue (Ruta gaveolens) | Roses and Raspberries | Japanese Beetles | Dislikes Sweet Basil |
| Sage (Salvia officinalis) | Rosemary, Cabbage, Carrots | Cabbage Moth, Carrot Fly, Flea Beetle, Slugs | Dislikes Cucumbers |
| Southernwood (Artemesia abrotanum) | Cabbages | Cabbage Butterflies | |
| Summer Savory (Satureia hortensis ) | Beans | Bean Beetles | |
| Tansy (Tanacetum vulgare) | Fruit Trees, Roses, Raspberries | Flying Insects, Japanese Beetles, Striped Cucumber Beetles, Squash Bugs, Ants, Flies | |
| Thyme (Thymus vulgaris) | Cabbage | Cabbage Worm | |
| Wormwood (Artemisia absinthium) | | Moths, Slugs, Carrot Fly. Plant at boundaries to keep animals out of the garden. | Fresh material will stunt growth of young plants, use dried sprigs |
| Yarrow (Achillea millefolium ) | Plant near aromatic herbs to enhance production of essential oils. | Attracts Hover Flies and their larvae prey on Aphids | |
