Eight talented Windsor gardeners will open a potpourri of different types of gardens to the public.  Co-sponsored by Windsor Historical Society and the Windsor Garden Club.  Tickets:  $15 day-of-tour; $10 in advance and to Windsor Historical Society and Windsor Garden Club members. 688-3813 or 708-8001 (pager) for tickets, map and brochure, more information, or to offer your garden for inclusion in the tour.