Linked from
The 14 pages that link to Companion planting, each with the reason it gives.
Herb gardenRelated: Herbs are sometimes paired with vegetables for practical or ecological reasons.
MarigoldRelated: Gardeners often plant Tagetes beside crops in attempts to deter pests.
Summer squashRelated: It is often used when planning mixed vegetable gardens that include squash.
CalendulaRelated: Gardeners sometimes plant Calendula alongside crops, though claimed benefits vary.
Centaurea cyanusRelated: Cornflowers can be included in mixed plots to provide flowers for insects.