www.APLD.org • The Association of Professional Landscape Designers

www.apldoregon.org • Oregon State Chapter of The Association of Professional Landscape Designers

www.esmasonry.com • Emerald Stone Masonry

www.friendsoftrees.org • Friends of Trees

www.greenroofs.org • Green Roofs for Healthy Cities

www.hardyplantsociety.org • The Hardy Plant Society of Oregon

www.naturesneeds.com • Nature's Needs (humus)

www.willametteorganics.com • Willamette Organics (compost tea)