By Denny Dyroff, Entertainment Editor, The Times Tulips at Longwood Gardens Longwood Gardens (Route 1, Kennett Square, 610-388-1000, www.longwoodgardens.org) is a living example of the old saying that “when one door closes, another door opens.” After another multi-week successful run in 2019, Longwood’s “Orchid Extravagaza” closed last weekend.