Much of companion planting is based on observation and folklore. But a few studies have shown limited positive effects, such as using collards to ... a pollinator magnet. Green lacewings also ...

Collard greens are one of the most effective solutions to keep ... It's worth noting, however, that these companion plants cannot keep your tomato plants bug-free, but just reduce the overall ...

DeZha Smith, at 21-year-old farmer from north St. Louis, surveys dozens of collard green plants at the Jackie Joyner-Kersee Center in East St. Louis, Ill. The plants are part of a study examining ...