More than 120,000 species of trees, wildflowers, and native plants take root across The Holden Arboretum’s 3,600 acres of themed gardens and natural terrain. As birds chirp overhead and butterflies binge on nectar plants, visitors make their way across 12 gardens on guided tours or leisurely strolls. The most intrepid wanderers can spend a full day attempting to navigate more than 20 miles of trails that wind through a rhododendron garden, a mature beech-maple forest, and a waterfowl observation blind. Guides facilitate a more focused experience during forest explorations and home landscaping sessions, the latter of which demonstrate how to add a lifelike smile to topiary sculptures of the mailman. The arboretum also hosts numerous lecture series, youth programs, and special events such as Fridays in the Garden, where light refreshments accompany presentations or walks with horticultural experts.