Loading view. There are no upcoming events. There are no upcoming events. Events The Waterfall Classroom at the Master Gardener Demonstration Garden The Waterfall Classroom at the Master Gardener Demonstration Garden 1620 S Union Kennewick, WA 99337 United States Get Directions 509-735-3551 Today Upcoming Upcoming Select date. Condense Events Series Previous Events Today Next Events Subscribe to calendar Google Calendar iCalendar Outlook 365 Outlook Live Export .ics file Export Outlook .ics file