When Katie Diez talks to me from her home in rural Oregon, the world is red with smoke. It’s mid-September, and wildfires have been raging across the West Coast for weeks. “The air quality is in the hazardous level,” says Diez. “I keep looking out the window hoping that the smoke will start to clear.” Inside Diez’s home, however, life blossoms. Diez is a pediatric occupational therapist and the cofounder of Comfort Seeds, an initiative that uses gardening to help kids who have lost loved ones heal. She’s currently writing…