If tomatoes torment you (growing them, that is), this week gardener Max Elliott from YouthLaunch explains how he and his Urban Roots young farm interns grow … Question by Reece: When I start my plants can I add coffee grinds to the soil? I will be growing tomatoes, peppers, and herbs and more. I read that coffee grinds are great to add. I will be starting my plants indoors in newspaper planters. Can I mix some used coffee grinds into the soil when they start? Thanks! Best answer: Answer by MardukWait till you plant them… Read Article →