There are reports about companion plants that can either help or hinder the growth of certain fruits and vegetables, including watermelon and blueberries. Some outlets have listed specific plants that should be grown alongside these crops to boost their growth, while others have identified plants that should be avoided. The specific combinations and recommendations vary across the reports, with some focusing on watermelon, others on blueberries, and a few discussing general companion planting strategies for various fruits and vegetables.