NJBG Holiday Open House. For a few days this year, the grand Skylands Manor House at the New Jersey State Botanical Garden will be arrayed in splendid, Renaissance-themed holiday finery. Daytime Tours, 10 am-4 pm daily (last ticket sold at 4 pm) Tickets available at the door. Adults: $8 Seniors: $7 Children 6-12: $5 Children under 6: Free (No strollers allowed in the Manor, please.)