The Holden Arboretum, in Kirtland, Ohio, is one of the largest arboreta and botanical gardens in the United States, with more than 3,600 acres (1,500 ha), including 600 acres (240 ha) devoted to collections and gardens. Diverse natural areas and ecologically sensitive habitats make up the rest of the holdings. Holden's collections includes 9,400 different kinds of woody plants, representing 79 plant families.

Kirtland is a city in Lake County, Ohio, United States. The population was 6,937 at the 2020 census. Kirtland is known for being the early headquarters of the Latter Day Saint movement from 1831 to 1837 and the site of the movement's first temple, the Kirtland Temple, completed in 1836. The Kirtland Temple and nearby Historic Kirtland Village are maintained as historic sites highlighting that era. The city is also the location for multiple parks in the Lake Metroparks system, as well as the Holden Arboretum.