- Desert Botanical Garden: www.dbg.org
- University of Arizona Cooperative Extension: extension.arizona.edu
- Arizona Nursery Association: www.azna.org
- Arizona Municipal Water Users Association: www.amwua.org
- Arizona Native Plant Society: www.aznps.org
- Maricopa County Cooperative Extension: www.ag.arizona.edu/maricopa/garden
- Arizona Department of Water Resources: www.azwater.gov
- Master Gardeners: www.mastergardeners.org
