The "Science Behind" series continues this month at Walking Mountains with The Science Behind Medicinal Gardens. The discussion will take place Wednesday at 6:30 p.m. for a fun-filled, educational evening. Plants and gardens have a greater purpose than simply to be an eye catching source of food. Discover the science behind designing a medicinal garden. During this program, presenters will discuss the history and origins of medicinal plants and examine the health benefits of plants such as arnica, lavender, basil and chamomile. They also will demonstrate how to design a garden to address symptoms such as pain relief and stress reduction. Rita Manna, owner of Reet's Garden & Design LLC, will teach the class in conjunction with Lara Carlson from Walking Mountains. Manna is a permaculture designer who specializes in regenerative landscape design. The gardens that she creates are not only beautiful but functional, water-wise, chemical-free and healing to humans, animals and our environment. She is a certified and licensed permaculture designer and landscape designer.The Science Behind series of classes highlights useful and fun skills that have underlying scientific principles. Each class provides a hands-on, interactive component with instruction from a local subject-matter expert and a Walking Mountains educator. Classes are held once a month at Walking Mountains Science Center in Avon. Spaces are limited; call 970-827-9725 to reserve your spot.