Hundreds of varieties of perennials, both new to the market and old-time favorites, will be for sale through Historic New England at the Lyman Estates Greenhouses, 185 Lyman Street in Waltham, from Friday, June 1 through Sunday, June 3.  Let the experts help you choose the right plants for  your garden.  Free admission, but call 781-891-1985, or log on to www.historicnewengland.org, for hours of operation.