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

Meagan Rogowski, ASLA, Officer

Stanley Szwalek, ASLA, Officer

Laura Tenny, ASLA, Officer and Past Co-Chair

Children's Outdoor Environments

Kenneth Hurst, ASLA, Co-Chair

Katherine Lewis, 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

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, ASLA, Co-Chair

Eric Gilbey, ASLA, Co-Chair

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

Shraddha Sawant, 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

Shan Jiang, ASLA, Chair

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

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

Josh Sloan, ASLA, Co-Chair

Glenn Bayfield, ASLA, Co-Chair

Theresa Backus, ASLA, Officer and Past Co-Chair

Jessi Barnes, 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

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