On Saturday, September 26, from 10 – 2, join Sonia Baerhuk, lead grounds-person, for a tour of the extensive campus at Perkins School for the Blind in Watertown, the country’s first school for the visually impaired, founded in 1832. The school’s sustainable garden highlights range from the leaf and fallen tree composting systems to a tropical “Cathedral” greenhouse that operates without the use of chemicals. See the two recently installed rain gardens funded by a grant from the Watertown Community Foundation, as well as orchards that grow with biological controls and visit several native plant gardens.  The smells, textures and sounds in the various gardens enrich the lives of students, staff and visitors. Bring a bag lunch. Sponsored by the New England Wild Flower Society, $35 for NEWFS members, $42 for nonmembers, limited to 20 participants.  For more information, directions, and to register, log on to www.newfs.org, or call 508-877-7630.