PPN Council
The PPN Council consists of the chairs of all 20 Professional Practice Networks (PPNs). The PPN Council meets quarterly via conference call and in person during the ASLA Conference on Landscape Architecture to discuss matters of interest to all PPNs.
The Council Chair is a past chair from one of the PPNs. The Council Chair Designate and the Council's Immediate Past Chair also sit on the Council. In addition, the Vice President for Professional Practice is the Council's liaison to the ASLA Executive Committee.
Council Leadership
PPN Council Chair
Theresa Backhus, ASLA
PPN Council Chair Designate
Lucy Joyce, ASLA
PPN Council Immediate Past Chair
Chad Kennedy, ASLA
Vice President of Professional Practice
Adrian Smith, FASLA
PPN Leadership Teams
Campus Planning and Design
Amelle Schultz, ASLA, Co-Chair
Krista Van Hove, ASLA, Co-Chair
Tony Catchot, ASLA, Officer
David Cutter, FASLA, Officer and Past Co-Chair
Emily Deeker, ASLA, Officer
Stanley Szwalek, ASLA, Officer
Laura Tenny, ASLA, Officer and Past Co-Chair
Children's Outdoor Environments
Missy Benson, ASLA, Co-Chair
Kenneth Hurst, ASLA, Co-Chair
Brenna Castro Carlson, ASLA, Officer
Liz Dafoe, ASLA, Officer
Danielle Denk, Officer
Ilisa Goldman, ASLA, Officer and Past Co-Chair
Roger Grant, ASLA, Officer
Michael Hill, ASLA, Officer
Lisa Howard, ASLA, Officer
Yiwei Huang, Student ASLA
Lauren Iversen, Student ASLA, Officer
Elyana Javaheri, ASLA, Officer
Julie Johnson, ASLA, Officer and Past Co-Chair
Chad Kennedy, ASLA, Officer and Past Co-Chair
Katherine Lewis, ASLA, Officer
John McConkey, ASLA, Officer
Bill Patterson, ASLA, Officer
Amy Wagenfeld, Affiliate ASLA, Officer and Past Co-Chair
Community Design
Scott Redding, ASLA, Co-Chair
Stacey Weaks, ASLA, Co-Chair
Dave Jordan, ASLA, Officer
Riley Nystrom, Student ASLA, Officer
Regan Pence, ASLA, Officer
Oliver Penny, Associate ASLA, Officer
Charles (Bob) R. Smith, ASLA, Officer and Past Chair
Design-Build
Ron DuHamel, ASLA, Chair
Patrick Beam, ASLA, Officer
Grisel Gastélum, International Student ASLA, Officer
Jay Gehler, ASLA, Officer and Past Chair
Fred Ogram, ASLA, Officer
John Vasiliou, ASLA, Officer
Adam Zwier, Affiliate ASLA, Officer
Digital Technology
Ben George
Eric Gilbey, ASLA
Jack Garcia, Affiliate ASLA
Grisel Gastélum, Student International ASLA
Qiutong Ge, Student ASLA
Randy Mardis, ASLA
Cullen Meves, ASLA
Andrew Sargeant, ASLA
Lauren Schmidt, ASLA
Lashani Wickremasinghe, Student International ASLA
Matt Wilkins
Ecology and Restoration
Sohyun Park, ASLA, Chair
Linda Ashby, ASLA, Officer
Tami Banh, Associate ASLA, Officer
Barbara Barnes, Officer
Jane Brown, ASLA, Officer
Natalia Cagide Elmer, Officer and Past Co-Chair
Tony Fettes, ASLA, Officer
Kelly Fleming, Officer
Bryan Harrison, ASLA, Officer
Brandon Herman, ASLA, Officer
Tricia Keffer, Associate ASLA, Officer
Daniel James Martin, Associate ASLA, Officer
Sarah McDermott McCown, Associate ASLA, Officer
Ingrid Morken, ASLA, Officer and Past Co-Chair
Darcy Nuffer, ASLA, Officer
Jeremy Person, ASLA, Officer
Barbara Restaino, ASLA, Officer
Félix de Rosen, Student ASLA, Officer
Lee Skabelund, ASLA, Officer and Past Chair
Delia Smith, ASLA, Officer
Education and Practice
Bill Estes, ASLA, Co-Chair
Robert Hewitt, FASLA, Co-Chair
John Anderson, ASLA, Officer and Past Chair
Brian Cook, ASLA, Officer
Steven Hawkins, Affiliate ASLA, Officer
Patricia Trauth, ASLA, Officer
Officer positions available. Please email propractice@asla.org if interested.
Environmental Justice
Michelle Lin-Luse, ASLA, Co-Chair
Sarah Kwon, Affiliate ASLA, Co-Chair
Jennifer Bolstad, ASLA, Officer
Ignacio Bunster-Ossa, FASLA, Officer
Anthony Castagnoli, ASLA, Officer
Chingwen Cheng, ASLA, Officer and Past Co-Chair
Ujijji Davis Williams, ASLA, Officer
Scott Fulford, ASLA, Officer
Elena Juodisius, Associate ASLA, Officer
Gloria Lau, ASLA, Officer
Hannah (Yu Hang) Leung, Student ASLA, Officer
Lily Mank, Associate ASLA, Officer
Tom Martin, ASLA, Officer and Past Co-Chair
Erin McDonald, Officer and Past Co-Chair
Matthew Romero, ASLA, Officer and Past Co-Chair
Cassandra Rice, ASLA, Officer
Healthcare and Therapeutic Design
Lisa Bailey, ASLA, Officer and Past Co-Chair
Javier Esquivel, Student ASLA, Officer
Siyi He, ASLA, Officer and Past Chair
Andrea Hopkin, ASLA, Officer
Siobhan Hussey, ASLA, Officer
Shan Jiang, Officer, Officer
Afrouz Rahmati, Student ASLA, Officer
Melody Tapia, Officer and Past Co-Chair
Haoyue Yang, Student ASLA, Officer
Historic Preservation
Brenda Williams, ASLA, Chair
Allison A. Crosbie, ASLA, Officer
Sarah Dunville, Student ASLA, Officer
Rebecca Flemer, Affiliate ASLA, Officer
Bob Gray, Associate ASLA, Officer
Rebekah Johnston, ASLA, Officer
Laura Knott, ASLA, Officer
Jennifer Kriegel, Student ASLA, Officer
Laurie Matthews, ASLA, Officer
Ann Mullins, FASLA, Officer
Douglas Nelson, ASLA, Officer
Elena Pascarella, ASLA, Officer
Richard Powell, FASLA, Officer
Scott Shinton, Associate ASLA, Officer
Susannah Smith, Affiliate ASLA, Officer
Graham Sones, ASLA, Officer
James Ward, ASLA, Officer
Barbara Wyatt, ASLA, Officer
HALS Subcommittee
Helen Erickson, ASLA, HALS Chair / Coordinator
The full HALS Subcommittee is listed here.
International Practice
Lee Parks, International ASLA, Chair
Brandon Peters, ASLA, Officer
Cindi Rowan, Officer
Deony Vines, Student Affiliate ASLA, Officer
Yujia Wang, Associate ASLA, Officer
Dou Zhang, ASLA, Officer and Past Co-Chair
Landscape—Land Use Planning
Erin Kelly, ASLA, Chair
Patricia Diaz Agrela, International ASLA, Officer
Michael Gair, ASLA, Officer
Elham Ghabouli Mankalpa, Corporate ASLA, Officer
Liia Koiv-Haus, Associate ASLA, Officer
Weimin Li, ASLA, Officer
Christopher Overdorf, ASLA, Officer
Kavita Ramalingam, Student ASLA, Officer
Officer positions available. Please email propractice@asla.org if interested.
Parks and Recreation
David Barth, PhD, ASLA, Co-Chair
Jackie Higgins, ASLA, Co-Chair
Matt Boehner, ASLA, Officer
Dennis E. Bryers, FASLA, Officer
Robert Collins, ASLA, Officer
John Paul Coronado, Student ASLA, Officer
Lora Greco, ASLA, Officer
Mark Heinicke, ASLA, Officer
Tomás Herrera-Mishler, ASLA, Officer and Past Co-Chair
Robynne Heymans, Associate ASLA, Officer
Ken Keeley, ASLA, Officer
Can Liu, ASLA, Officer
Kalle Maggio, ASLA, Officer
Bronwen Mastro, ASLA, Officer
Emily Paskewicz, ASLA, Officer
Bradley Roberts, ASLA, Officer
Stephanie Sanders, ASLA, Officer
Lauren Schmitt, ASLA, Officer
John Scott, ASLA, Officer
Nick Staib, ASLA, Officer
Eric Tamulonis, ASLA, Officer and Past Co-Chair
Planting Design
Nancy Buley, Honorary ASLA, Officer - Allied Organization Liaison
Jodie Cook, ASLA, Officer
Dan Greenberg, ASLA, Officer
David Hopman, ASLA, Officer and Past Chair
Haven Kiers, ASLA, Officer
Abigail Leonard, Associate ASLA, Officer
Maria Maurer, Associate ASLA, Officer
Julie Soss, ASLA, Officer
Anne Spafford, ASLA, Officer
Residential Landscape Architecture
Steve Bauer, ASLA, Chair
Selah Grant, Student ASLA, Officer
Michael Mitchell, ASLA, Officer
Rob Parker, ASLA, Officer
Patricia Trauth, ASLA, Officer
Weston Wunder, ASLA, Officer
Co-Chair and Officer positions available. Please email propractice@asla.org if interested.
Sustainable Design and Development
Brian Maddock, ASLA, Co-Chair
Josh Sloan, ASLA, Co-Chair
Theresa Backus, ASLA, Officer and Past Co-Chair
Jessi Barnes, ASLA, Officer
Glenn Bayfield, ASLA, Officer
Hunter Beckham, FASLA, Officer and Past Co-Chair
Lisa Beyer, ASLA, Officer
Charles Brenton, ASLA, Officer
Corry Buckwalter, ASLA, Officer
Emily Buehrer, ASLA, Officer
Alex Camprubi, International ASLA, Officer
Joe Chambers, ASLA, Officer
Jodie Cook, ASLA, Officer
John Courtney, ASLA, Officer
Lisa Cowan, ASLA, Officer and Past Co-Chair
Aida Curtis, ASLA, Officer
Lisa Cutshaw, ASLA, Officer
Mark Dennis, ASLA, Officer
Steve Feccia, ASLA, Officer
CeCe Haydock, ASLA, Officer and Past Co-Chair
Dean Hill, ASLA, Officer
Kathryn Hill, ASLA, Officer
Elise Huggins, FASLA, Officer
Devin Johnson Associate ASLA, Officer
Lisa Kunst Vavro, ASLA, Officer and Past Co-Chair
Marieke Lacasse, ASLA, Officer
Elizabeth Lawandales, ASLA, Officer
Michael Ledbetter, ASLA, Officer
Greg Melton, ASLA, Officer
Kirsten Nichols, ASLA, Officer
Carolyne Orazi, ASLA, Officer
April Philips, FASLA, Officer and Past Co-Chair
Kristen Reardon, Officer and Past Co-Chair
Peter Russell, Associate ASLA, Officer
Sarah Beth Sammons, ASLA, Officer
Carl Smith, International ASLA, Officer
Lisa Warren, Affiliate ASLA, Officer
Charlie Weber, Student ASLA, Officer
Veronica Westendorff, ASLA, Officer
Transportation
Lucy Joyce, ASLA, Co-Chair
Jean Senechal Biggs, ASLA, Co-Chair
Sean Batty, ASLA, Officer
Ryan Booth, ASLA, Officer
Sue Choi, Student ASLA, Officer
Christine Colley, ASLA, Officer - The Field Editor
Derek Holmer, Associate ASLA, Officer
Valorie LaCour, ASLA, Officer
Allysha Lorber, ASLA, Officer and Past Co-Chair
Willson McBurney, ASLA, Officer
Ken Ray, ASLA, Officer
Bruce Reed, ASLA, Officer
Jim Schuessler, FASLA, Officer
Abhishek Sharma, ASLA, Officer
Meg Storrow, FASLA, Officer
Tom Tavella, FASLA, Officer
Urban Design
Maren McBride, ASLA, Chair
Mark Alexander, Officer
Daniel Ashworth, ASLA, Officer and Past Co-Chair
Jessica Bacorn, ASLA, Officer
George Blevins, Corporate ASLA, Officer
James Chaddick, ASLA, Officer
Pinyang Chen, Student ASLA, Officer
Anshu Darbari, Student Affiliate ASLA, Officer
Jeremy Dvorak, Student ASLA, Officer
David Flanagan, ASLA, Officer
Grisel Gastélum, Student International ASLA, Officer
Max Gatta, Student ASLA, Officer
Sara Hadavi, Associate ASLA, Officer
Jim Hencke, ASLA, Officer
Cheryl Huffman, ASLA, Officer
Kathy Johnson, ASLA, Officer
Bradley Jones, ASLA, Officer
Jared Edgar McKnight, Student ASLA
Rafael Murillo, ASLA, Officer
Taner Özdil, PhD, ASLA, Officer and Past Co-Chair
Lauren Patterson, ASLA, Officer
Michael Petty, ASLA, Officer
Nicholas Petty, Officer
David Retzsch, ASLA, Officer
Sharon Rhue, ASLA, Officer
Tom Schurch, Officer and Past Co-Chair
Karli Stephenson, ASLA, Officer
Daniel Straub, ASLA, Officer
Can Sun, Student ASLA, Officer
Jordan van der Hagen, Associate ASLA, Officer
Alexa Vaughn-Brainard, Associate ASLA, Officer
Yangdi Wang, ASLA, Officer
Water Conservation
Michael Igo, Affiliate, ASLA, Chair
David Anderson, ASLA, Officer
Jim Davis, ASLA, Officer and Past Co-Chair
Glen Dake, FASLA, Officer
Galen Drake, ASLA, Officer
Katrina Majewski, ASLA, Officer
Brian Mulligan, ASLA, Officer
Officer positions available. Please email propractice@asla.org if interested.
Women in Landscape Architecture
Sahar Teymouri, ASLA, Co-Chair
Lara Moffat, ASLA, Co-Chair
Sami Allen, Student ASLA, Officer
Alexa Bush, ASLA, Officer - Webinars
Kirsten Catellier, ASLA, Officer - The Field
Catherine Clark, ASLA,Officer - Communications
Nancy Gandarilla Valenzuela, Associate ASLA, Officer - Social Media
Laurie Hall, ASLA, Officer
Laura Marett, ASLA, Officer
TJ Marston, ASLA, Officer and Past Co-Chair
Patricia Matamoros, Associate ASLA, Officer - The Field
Alexandra Mei, ASLA, Officer- Wikipedia
Sandra (Sandy) Meulners, ASLA, Officer - Social Media
Emily O'Mahoney, FASLA, Officer - Webinars and Past Co-Chair
Catherine Saunders, Affiliate ASLA, Officer - Social Media
Kristina Snyder, ASLA, Officer - Social Media and Past Co-Chair
Elizabeth Van Sickel, ASLA, Officer - Webinars
ASLA Staff Support for the PPNs
Katie Riddle, ASLA, PLA, LEED AP, SITES AP
Professional Practice Director
kriddle@asla.org
Alexandra Hay
Professional Practice Manager
ahay@asla.org
Chicquita Hairston
Professional Practice Coordinator
chairston@asla.org