(515) 795-3216 info@iowaarboretum.org

Mission & History

Mission Statement

The Iowa Arboretum & Gardens is a community supported public garden inspiring curiosity, discovery, and appreciation of the natural landscape.


To be a leading botanical, educational, and recreational destination fostering the value and enjoyment of nature.


Core Organizational Values


We cultivate an environment that inspires learning about plants and nature in Iowa.


We encourage environmental stewardship and leadership.


We foster community engagement and relationships.


We are passionate about creating positive experiences and an environment that is fun, new,  and fresh for visitors of all ages.

Diversity, Equity, & Inclusion

We will welcome all audiences and treat everyone with dignity and fairness, and respect.


We value and respect donors, staff, members, volunteers, and guests.


We continuously evaluate and improve collections and operations. 




The Iowa State Horticultural Society was founded in 1866 for the purpose of promoting and encouraging horticulture and its related interests. In 1966, as the ISHS celebrated their 100th Anniversary, they passed a resolution to start an Arboretum to serve the state of Iowa. A 40-acre tract of land located in Boone County was purchased and the Iowa Arboretum was established as a 501(c)(3) non-profit organization. Both organizations set out to support horticulture in the state of Iowa, sharing the same goals.

This unique showplace has continued to expand and contains over 6,000 accessioned woody and herbaceous plants. It is one of the largest and most diverse displays of plants that can be successfully grown in Iowa. In addition, the Arboretum manages 120-acres of native woodland and prairie featuring century old oaks and native grasses.

Dale Siems, Governor Ray, Arie Kroeze

Early Board of Director