Cabbage family plants also benefit from planting near aromatic perennial herbs such as chamomile, lavender, mint, rosemary, sage and thyme, because aromatic plants are deterrents to cabbage worms. As these plants begin leafing out again in spring, this is protection for your cabbage family plants while the weather is still too frosty for marigolds. In addition to peas and lettuce, they also benefit from being near chives, peas, leeks, onions, rosemary, and sage. Chives benefit carrots and fruit tree roots. Horseradish nurtures potatoes.
Leeks benefit from onions and carrots.
Peas benefit radishes, and the nitrogen they add to the soil benefits many other vegetables. Potatoes like horseradish and cabbage. Radishes benefit carrots, lettuce and peas. Spinach and strawberries help each other. So work with plant companions when designing your garden, and reap the benefit of healthier and more vigorous crops.