Police Destroy Farm Mistake Tomato Plants for Marijuana. Sounds Like Monsanto Inspired. By Michael Allen, Thu, August 15, 2013 Several residents at the “Gard… Question by ~*Lizzie*~: I’ve been growing tomato plants, but some of their stems and leaf veins are turning purple? Some of the stems and veiwns of tomato plants that I’ve been growing are turning purple. I really want to know why that is and whether it’s a bad thing that they are turning purple. Best answer: Answer by CarrotI really think U shouldd get a new tamato plant but keep watering… Read Article →