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Trial Results

• Perennial Results
• Cool Season Results
• Annual Results

"Best of" Annuals

• 2019 Winners
• 2018 Winners
• 2017 Winners
• 2016 Winners
• 2015 Winners
• 2014 Winners
• 2013 Winners
• 2012 Winners
• 2011 Winners
• 2010 Winners

Best of Cool Season

• 2019 Winners
• 2018 Winners
• 2017 Winners
• 2016 Winners
• 2015 Winners
• 2014 Winners
• 2010 Winners
• 2009 Winners
• 2008 Winners

"Top Performer" Perennial

• 2019 Winners
• 2018 Winners
• 2017 Winners
• 2016 Winners
• 2015 Winners
• 2014 Winners
• 2013 Winners
• 2012 Winners
• 2011 Winners
• 2010 Winners
• 2009 Winners

Videos

• View Videos

Related Links

• PlantTalk Colorado™
• Plant and Environmental Research Center - Arboretum
• Gardens on Spring Creek
• CSU Department of Horticulture and Landscape Architecture
• College of Agricultural Sciences
• PlantSelect®
• Green Industries of Colorado (Green Co.)
• Denver Botanic Gardens
• CSU Extension
• Make an online donation to the Annual Flower Trial Gardens

Portulaca – ‘ColorBlast Double Yellow’ from Westhoff