Growing crops together at the same time in the same place can be considered a "polyculture" (contrasting with a monoculture of a large area of a single crop). A classic example is the "three-sisters" of Latin America; corn, beans and squash.
Growing beneficial plants (like flowers) alongside your crops is called "companion planting." A common example is planting French marigolds (Tagetes, rather than the English marigolds which are a Calendula) alongside tomatoes. The strong scent of the flowers is said to repel blackfly and greenfly.
What are your favourite crop combinations (polyculture or companion planting) for good results?
What are your experimenting with this year?
We'd love to follow along with what you're up to and how it goes!