Most of us aren’t spending our days watching our houseplants grow. We see their signs of life only occasionally – a new leaf unfurled, a stem leaning toward the window.

The internet is full of advice on just about everything, including plant care. As the director of a plant diagnostic laboratory and expert on plant medicine, I help people manage their plants’ health

Cherry blossoms mark the beginning of spring. Various festivals are regularly organized in California, Colorado, Georgia, Tennessee and Washington, D.C., to celebrate the bloom of cherry trees. …