Thursday, April 12, 2018 - 8:30am to Friday, April 13, 2018 - 3:45pmEvent Type: ConferenceThe April 12-13, 2018, Gardening School, will be held at the Iowa Arboretum, in Madrid, Iowa. Agenda Gardening School 3 Apr 12-13, 2018 Category: Upcoming EventsTags: Story County, Boone County, Madrid, continuing education