Grandma’s Secret: Why Old-Timers Planted Herbs With Houseplants—And Why 2026 Is Bringing It Back
Your grandmother knew something about growing plants together that science is only now explaining. By pairing aromatic herbs like basil and rosemary with decorative houseplants, old-timers created a natural pest-defense system using volatile compounds. In 2026, this forgotten practice is getting the scientific validation it deserves.