Companion plants for the strawberry include bush beans, lettuce, members of the onion family, borage, caraway, sage, spinach and blueberries. Companion plants share the space and growing habits of the strawberry and may help it to grow and repel insects.
Borage and other flowering herbs are beneficial to strawberries because their flowers attract bees and other insect pollinators. They also help to repel insects, such as the tomato hornworm, that attack strawberries. Bush beans, peas and other legumes help to fix nitrogen levels in the soil. Spinach and the smell of allium plants like onions and garlic also keep pests away.