Celebrate the arrival of spring with a visit to the Lyman Estate annual herb sale featuring thousands of naturally grown culinary, medicinal, and ornamental herbs. Scented geraniums, herbal topiaries, pottery, and garden gifts are also available, and the staff is on hand to offer expert advice. The Lyman Estate Greenhouses are located at 185 Lyman Street in Waltham, and the sale will take place Friday, May 5 – Sunday, May 7, from 9:30 – 4, and will be repeated Saturday, May 13, also from 9:30 – 4. Free admission. For more information, call 617-994-5913, or log on to www.historicnewengland.org