Learn eco-friendly gardening techniques that will help your garden to thrive. On Tuesday, May 19 from 6 – 7:30 in the evening, join The New England Wild Flower Society and Alicia Coleman on a tour of the gardens of Wolbach Farm, a beautiful 54-acre greenspace along the Sudbury River. We’ll see rain, butterfly, and bird gardens and discuss the use of rain barrels and composting as well as ways to incorporate native plants into your own property. $12 for NEWFS members, $20 for nonmembers. Please note that registration is through Sudbury Valley Trustees, http://www.sudburyvalleytrustees.org/events-calendar/eco-gardening.