NPSOT Native Plant Landscaping Certification- Class Descriptions
SAWS Xeriscape Principles- SAWS WaterSaver Newsletter – Seven Principles of Xeriscape
NBU Water Saving Newsletter- 21-15310-Connections21x925-WebResSpreads.pdf (nbutexas.com)

Texas Wildscapes: Gardening for Wildlife, Kelly Bender, TAMU Press, 2009

Requiem for a Lawnmower: Gardening in a Warmer Drier World, Wasowski and Wasowski, Taylor Trade Publishing, 2004