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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. 106 - Registration & General info
(206) 633-0224 - Garden Hotline for your gardening questions
(206) 200-2933 - Good Food Bags
(206) 633-0450 - Fax

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


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 Informatics Manager ext. 127

Sarah Collier, Director of Programs ext. 133

Skye D'Aquila, Good Food Bags Manager

Susan Gebretsadik, Communications Coordinator, email

Chris Hoffer, Environmental Programs Manager ext. 108

Rebecca Holbert, Children's Garden Coordinator ext. 124

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

Kevin McAleese, Communications Manager ext. 118

Maia McCoy, Good Food Bags Coordinator

Melissa McGinn, Garden Hotline Educator

Laura McGrath, Environmental Programs Coordinator ext. 131

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

Alison Nichols, Farm Business Incubator Production Manager, email

Shawn Peterson, Senior Meal Program Dietician, email

Leesa Schandel, Interim Executive Director ext.130

Sharon Siehl, Garden Programs Director ext. 117

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

Cassie Whitebread, MC/SS Program Coordinator, (206) 633-0097

Board of Directors

To email board members individually, email:

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