Assawaga Farm - Plant Sales on May 17 and May 24. Order in advance and pick up at the farm or at a location in Somerville.
Gore Place - Gore Place in Waltham is selling seedlings from now through May 26.Mahoney's - Locations in Brighton, Concord and other Boston area locations.
Russo's - Watertown's local market sells plant seedlings every year.
Waltham Fields Community Farm - They are sold out for 2020, but are a popular provider of seedlings.