Open to the Public: Sat., June 20 from 9 am – 5 pm and Sun., June 21 from 1 pm – 3 pm. This Standard Flower Show by the Community Garden Club of Marlborough-on-Hudson includes include floral arrangements, horticulture exhibits and both floral and horticulture youth entries. Main Library, Auditorium. Free admission. Part of Newburgh Illuminated, celebrating Newburgh’s 150th anniversary as an incorporated city.