Runners up:
2. Tohono Chul Park, 7366 N. Paseo Del Norte, 575-8468, www.tohonochulpark.org
3. Tucson Botanical Gardens, 2150 N. Alvernon Way, 326-9686, www.tucsonbotanical.org
University of Arizona
| Oct 3, 2013
University of Arizona
| Sep 27, 2012
Tohono Chul Park
| Sep 22, 2011
University of Arizona Campus
| Sep 23, 2010
University of Arizona
| Sep 24, 2009
University of Arizona
| Sep 25, 2008
University of Arizona
| Sep 27, 2007
University of Arizona
| Sep 29, 2005
University of Arizona
| Sep 23, 2004
University of Arizona
| Sep 25, 2003
Tohono Chul Park
| Sep 27, 2002
University of Arizona
| Sep 29, 2000
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