The Long Island Dahlia Society will hold a special beginner’s class, Dahlias 101, Thurs., Feb. 18, 7 p.m. at the HG Williams Community Cen­ter on Ritter Avenue, Mas­sapequa. There will be re­freshments after the class and admission is free. All are welcome. For information online visit www.LongIsland­Dahlia. com or call Joe at 631-754-1002 in the evening or 516-832-3652 during the day.