HONORARY MEMBERSAligning Expertise With Purpose

Since 1916, the GCA has recognized the extraordinary achievements of more than 400 honorary members in the fields of horticulture or conservation, or whose knowledge and interests align with the GCA purpose.

With appreciation for their achievements, the GCA welcomes the following new honorary members for 2025.

Member since 2025

Mark Buscaino

Executive Director, Casey Trees

Mark's career is one of deep dedication to America's trees and American forestry. He understands first hand that trees are the answer for urban cooling, carbon sequestration, and community building.

Member since 2025

William E. "Bill" Eswine

Science Educator and Naturalist

An award-winning science educator and naturalist, Bill retains his passion and dedication for inspiring each student to live responsible impactful lives of environmental stewardship and sustainability.

Member since 2025

Margaret Roach

Naturalist, Author, Columnist, Podcaster

Every era needs its garden columnist/advisor, and Margaret has been that for our era. Margaret speaks to us about gardening from all the platforms on which our internet age gets information.

Member since 2025

Chris Strand

Charles F. Montgomery Director and CEO, Winterthur Museum, Garden & Library

Combining horticultural knowledge with vision and determination... he is an ideal ambassador for horticulture at Winterthur and beyond.

Honorary Members Directory

 
   
 
 
 

Member since 1998

William C. Baker

Conservationist and Leader of Save the Bay

Learn More

Member since 2001

Nancy J. Bechtol

Horticulturist and Scientific Facility Management

Learn More

Member since 2006

George Briggs

Public Gardens Administration and Landscape Architecture

Learn More

Member since 2025

Mark Buscaino

Executive Director, Casey Trees

Learn More

Member since 2014

Paul Cappiello

Public Gardens Administration, Horticulturist, and Educator

Learn More

Member since 2014

Staci L. Catron

Landscape Garden Historian

Learn More

Member since 2011

Kenneth D. Cochran

Horticulturist and Educator

Learn More

Member since 2021

Susan Cohen

Landscape Architect and Author

Learn More

Member since 2017

Bruce Crawford

Public Garden Administration and Horticulturist

Learn More

Member since 2010

Spencer E. Crews

Public Garden Administration

Learn More

Member since 2019

William Cullina

Public Garden Administration, Author, Expert on Native Plants

Learn More