Founded in 1982 in Pocatello beside Idaho State University, the Idaho State Arboretum is a public botanical garden focused on trees and shrubs. Open daily without charge, it combines recreation with education through an organized tree walk that helps visitors explore the collection. Its setting next to the university and its emphasis on accessible learning have made it a notable local destination, and in 2025 HGTV named it Idaho’s most gorgeous garden, reflecting recognition that extends beyond the campus and the city.