The Long Island Dahlia Society will hold a special beginner's class Dahlias 101, Thurs., Feb. 19, 7 p.m. in the HG Williams Community Center on Ritter Ave., Massapequa. There will be refreshments after the class and admission is free. All are welcome. For information, visit WWW. LongIslandDahlia.com or call Joe at 631-754-1002 in the evening or 516- 832-3652 during the day.