Companion Planting: Perennial/Biennial

Herb	Good Companion	Bad Companion	Attracts	Deters
Anise Hyssop	unknown	unknown	Bees	unknown
Bee Balm	tomatoes	unknown	bees	unknown
Chamomile, Russian	cabbages, onions	unknown	unknown	unknown
Catnip	borders	unknown	unknown	flea beetles, aphids, Japanese beetles, squash bugs, ants and weevils
Chives	apples, carrots, tomatoes, brassicas, mums, sunflowers	beans, peas, sage	unknown	Japanese beetles, carrot rust fly, aphids, apple scab, rose black spot, cutworms, hornworms
Comfrey	avacado, fruit trees, compost piles, leaf feeding	unknown	unknown	unknown
Costmary	unknown	unknown	unknown	moths
Fennel	dill	Plant alone, won't let others grow near it	ladybugs, syrphid flies, tachnid flies, beneficial parasitoid wasps, butterflies	fleas
Garlic	roses, raspberries, apple trees, pear trees, cucumbers, peas, lettuce, celery, peach trees	unknown	unknown	Japanese beetles, borers, coddling moth, root maggots, snails, carrot root fly, deer, whiteflies, aphids, fungus gnats
Horehound	tomatoes, peppers	unknown	bees, brachnid and ichemonid wasps, tachnid flies, syrid flies	unknown
Horseradish	corners of potato patch	unknown	unknown	potato bug, blister beetle
Hyssop	cabbage,grapes	radishes	bees, butterflies	cabbage moth, flea beetle
Lavender	unknown	unknown	unknown	deer
Lovage	helps most plants	unknown	good ground beetles, wasps	unknown
Oregano	broccoli, cabbage, cauliflower	unknown	unknown	cabbage fly, cucumber beetles
Peppermint	cabbage, tomatoes	unknown	hoverflies, predatory wasps, earthworms	white cabbage moth, cabbage moth, ants, rodents, flea beetles, fleas, aphids, mice
Rosemary	cabbage, beans, carrots, sage	unknown	unknown	cabbage moth, bean beetle, carroty fly
Rue	roses, raspberries, fruits, lavender	Swt. Basil, cucumbers, cabbage, sage	unknown	aphids, fish moths, flea beetle, onion maggot, slugs, snails, flies, Japanese beetles
Sage	broccoli, cauliflower, rosemary, cabbage, carrots	cucumber, onion, rue	honeybees, cabbage butterfly	cabbage moth, carrot fly, beetles, black flea beetle
Southernwood	cabbage & throughout the garden	unknown	unknown	cabbage moth
Tansy	fruit trees, roses, raspberries	unknown	honeybees	flying insects, Japanese beetles, striped cucumber beetles, squash bugs, ants, mice
Tarragon, Fr.	unknown	unknown	bees	cabbage worms
Yarrow	near aromatic herbs	unknown	Predatory wasps, ladybugs,hoverflies, damselbugs	unknown