Many know Brighton historically for its role in the cattle trade, particularly for supplying George Washington's Continental Army (at a time that the area was called Little Cambridge and was a part of Cambridge). Many are unfamiliar with 19th century Brighton's role in developing agriculture and horticulture, since it was seemingly dwarfed by the blossoming cattle trade; this mural offers insight into that part of the town's past.
I didn't know anything about the muralist who created the asparagus art, but the post at The Bostonist fills in the details:
Upon closer inspection of the murals, you may notice a striking similarity to other public art around Boston. Well, you're right! (Good job!) They were created by Joshua Winer, Boston's go-to public muralist. He's also responsible for the trompe l'oeil mural over the Harvard Square Theater and the Davenport Street Mural in Cambridge; The Chestnut Hill Highway Mural in Newton; the Kennedy Family Mural in Brookline; the Elephant Murals and the Alpha Omega Watch Mural in the Prudential Center; and The Newbury Street Mural on (you guessed it!) Newbury Street.