Leach Research Station Open House Volunteer



Saturday and Sunday, May 21 and 22

Volunteer Shifts: 8:30am-noon and 11:30am-4pm



Take this rare opportunity to visit one of our horticultural gems, the Dave G. Leach Research Station in Madison, Ohio. Be a guide and lead guests on a 45-minute tour through this woodland garden filled with thousands of blooming rhododendrons. Volunteers will also check guests in for the tours and assist with parking.


Directions will be sent upon sign up.



  • Moderate physical ability to walk up to one hour
  • General interest in plants and rhododendrons
  • Good communication skills
  • New volunteer orientation
  • Background check
  • Leach Research Station guide training


About the Station


David G. Leach began working at the site in the early 1970s. Internationally recognized as a pre-eminent horticulturist, rhododendron hybridizer and authority, Leach saw the property as an opportunity to take his research of more colorful, cold-hardy rhododendrons to a more hospitable environment.


The Leach Research Station has nearly 12 acres of display areas divided into separate gardens and almost 5 acres of field space devoted to evaluating rhododendron seedlings and selections. The display areas are set up as strolling gardens, and serve as sites for further evaluation of promising new selections. The gardens contain nearly 2,000 rhododendrons and the fields are temporary home to 8,000 more. Complimentary plants from many parts of the world round out the displays. The Leach Research Station was donated to The Holden Arboretum in 1986.



Steve Krebs, director of the Leach Station, guides a tour
Leach Research Station Garden Path

Volunteers get a rare peek at the glorious rhododendrons found at the Leach Research Station in Madison.