Drive-by whimsy on the Cape July 16, 2020 RWhitcomb-editor Section of the “Garden Grove’’ installation by Alfred Glover, at the Cahoon Museum of American Art, in Cotuit, Mass. (on Cape Cod), through the end of the year.The museum, which is still closed for in-person tours because of COVID-19,explains that “Garden Grove,’’ part of the museum’s Streetside series, is a drive-by exhibition visible from the street along Route 28. It consists of “whimsical tree sculptures made of metal and wood, marked by giant ginkgo and philodendron leaves, beautiful flowers and strange yet endearing animals like nesting birds and spotted dogs.’’