NOTE: All member and nonmember tickets must be reserved in advance, and masks are now optional but recommended. Learn more about how you can join us!

Have a question or comment? Call us at 412/622-6914 or email a member of our team below.


Richard V. Piacentini

President and CEO

Since 1994, Richard Piacentini has led the green transformation of Phipps Conservatory and Botanical Gardens, including construction of the Center for Sustainable Landscapes, the only building in the world to meet Living Building Challenge™, LEED® Platinum, WELL™ Platinum, SITES™ Platinum and BREEAM Outstanding In-Use certifications. Richard is interested in the connection between people and plants particularly as it relates to human and environmental health. He has received numerous professional honors, including APGA, ILFI and USGBC leadership awards.


Gregory R. DuFour

Director of Development Campaign

Since 2002, Greg DuFour has overseen transformational growth in capital and operating development campaigns while assisting the Board of Trustees’ Development, Trusteeship, Nominating and Executive committees. Previously he was Director of the Diocese of Pittsburgh Foundation and diocesan annual, capital and gift planning functions. Greg began his nonprofit career with the national headquarters of the American Bar Association while attending the University of Chicago. 


Corinne Gibson

Director of Diversity, Equity, Inclusion and Community Engagement

With over 15 years of experience in diversity, equity and inclusion, Corinne Gibson previously served as the director of DEI for the Office of the Chancellor of the PA State System of Higher Education and was selected as a 2021 recipient of the New Pittsburgh Courier Women of Excellence Award. Her passion for building relationships shows in her ability to create inclusive communities and connect with underserved people. Corinne is working to broaden Phipps' relationship with communities of color and LGBTQ communities, as well as to develop opportunities for community partnerships and collaboration.


Jan Kortz

Director of Human Resources and Operations

Jan Kortz, director of human resources and operations for Phipps since 1998, has supported the nonprofit through a time of rapid transformation that included major campus expansion, a stronger focus on sustainability, and large-scale events such as the 2009 Pittsburgh G-20 Summit. In 2012, Jan received a Pittsburgh Business Times Human Resource Leadership Award recognizing top professionals in the region who have made great strides in shaping their workplaces.


Allyson Koteski

Director of Guest Services,

Allyson Koteski is responsible for overseeing all revenue generating departments here at Phipps including admissions, gift shop, café and special events. With her team, Allyson is dedicated to providing the highest level of customer engagement to all guests. Allyson comes to Phipps with 25 years of management experience in specialty big box retail. She has a dual B.A. from Hiram College in International Economics and Management as well as French.    


Katie Lynch

Chief Financial Officer

Katie Lynch is responsible for managing the financial affairs of Phipps, including planning, budgeting and reporting. She also serves as the primary contact for the Board of Trustees Finance and Audit Committees. Prior experience includes work for local nonprofit and real estate development firms as well as financial analysis for Fortune 500 companies. A 30-year Pittsburgh resident, Katie has served in leadership positions in educational, political and athletic organizations. She received a B.A. in Economics from the University of Richmond and an M.B.A. in finance and accounting from Columbia University. 


Margie Radebaugh

Director of Horticulture

Margie Radebaugh has managed the horticulture department at Phipps since 2007, and is a part of the top level management team for the overall organization. She works with her staff to encourage and promote interdepartmental cooperation and teamwork resulting in a uniquely collaborative work environment. Margie served as director of education for Phipps from 2001 – 2007. She spent 13 years as Horticulture/Education Director of Pittsburgh Garden Place, formerly the Pittsburgh Civic Garden Center, prior to its merger with Phipps.


Joe Reed

Director of Marketing and Communications

Since 2007, Joe Reed’s accomplishments at Phipps have included grant writing for the Center for Sustainable Landscapes; successful nomination of over 100 professional awards, including accolades from American Institute of Architects and American Association of Museums; and development of Phipps’ first internally-managed website. His work received a Marketer of the Year Award from the American Marketing Association Pittsburgh Chapter. He is a past presenter at the American Public Gardens Association conference.


Sarah L. States, Ph.D.

Director of Research and Science Education,

Dr. Sarah States is responsible for creating innovative local, national and international research partnerships in the research areas of Phipps, such as ecology, human health and wellness, environmental education and science communication. Moreover, she oversees the development and implementation of pre-K – 12 informal education programs that focus on connecting youth to nature. She received her Ph.D. in ecology and evolutionary biology from Cornell University and completed postdoctoral research at the Yale School of Public Health and Columbia University, focusing on community ecology and vector-borne disease.


Gabe Tilove

Director of Adult Education and Community Outreach

Gabe Tilove works to connect people more closely to beauty and healing power of the natural world through education and outreach. Gabe directs 200+ classes annually on topics including sustainable horticulture and native plant landscapes, landscape design, botanical art, floral design, and culinary arts. Gabe oversees Phipps Master Gardener program, and sustainable landcare training for green industry professionals.  In 2013, Gabe helped launch Phipps' Homegrown program, an edible garden outreach program installing raised bed gardens for families in food insecure neighborhoods.

Photos © Mark Dixon, Paul g. Wiegman