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Contact Us

Address and phone information, board and staff lists.

Office Location & Mailing Address:

Tilth Alliance
4649 Sunnyside Avenue N., Suite 100
Seattle, WA 98103
Office Hours: Monday - Friday, 9 a.m.-5 p.m.

Phone Numbers

(206) 633-0451 - Main phone line with staff directory
(206) 633-0451 ext. 122 - Registration & General info
(206) 633-0224 - Garden Hotline for your gardening questions
(206) 200-2933 - Food Hub
(206) 633-0450 - Fax

Wallingford Office and Gardens
Bradner Gardens Park
Rainier Beach Learning Garden
Rainier Beach Urban Farm & Wetlands

Tilth Alliance Youth Garden Works Farm


General questions -
Garden-related questions - The Garden Hotline

Volunteering -

To email staff members individually, send to:

Staff Members and Phone Extensions

Tom Beck, Individual Giving and Infomatics Manager ext. 127

Liza Burke, Marketing and Communications Director ext. 103

Sarah Collier, Farm & Market Director ext. 133

Lauren Foster, Manager of Executive Operations ext. 123

Susan Gebretsadik, Tilth Alliance Youth Garden Works Program Manager, email

Laura Greenstreet, Information Technology Coordinator ext.122

Colin Groark, Community Education Program Director ext. 120

Chris Hoffer, Environmental Programs Manager ext. 108

Rebecca Holbert, Children's Garden Coordinator ext. 124

Justin Maltry, MC/SB Program Coordinator ext. 125

Laura Matter, Educator and Garden Hotline Program Manager ext. 110

Kevin McAleese, Communications Coordinator ext. 118

Melissa McGinn, Garden Hotline Educator

Laura McGrath, Environmental Programs Coordinator ext. 131

Nat Mengist, Children's Garden Coordinator ext. 105

Kate Nagle-Caraluzzo, Farm & Market Director, ext. 129 (

Maren Neldam, Children's Education Program Manager ext. 109

Alison Nichols, Farm Business Incubator Production Manager, email

Shawn Peterson, Senior Meal Program Dietician, email

Amanda Sallay, Development and Events Officer ext. 119

Leesa Schandel, Senior Director of Advancement ext.130

Sharon Siehl, Garden Programs Director ext. 117

Kyong Soh, Farm Manager, email

Lizzy Stone, Environmental Programs Coordinator ext. 102

Veralea Swayne, Good Shepherd Center Adult Learning Garden, email

Jenny Thacker, Corporate & Foundation Giving Officer ext. 114

Carey Thornton, Adult Education Coordinator ext. 115

Katie Vincent, Garden Hotline Educator, email

Sheryl Wiser, Manager of Business Partnerships, ext. 134

Board of Directors

To email board members individually, email:

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