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Trial Sites

Testing for the Best

Ongoing regional trialing continues to be a key part of our introduction process at Darwin Perennials, ensuring your customers can trust in the performance of our plants!

Before we consider launching a new variety, it has to meet our minimum trial standards. This “checklist” includes performance characteristics required for a passing grade in our greenhouse and outdoor trials in various regions. These trials are conducted at our own trial locations and with growers across the country.

Explore Our 2024 Trial Results
Landscape Ontario, Milton Ontario, Canada
Landscape Ontario
Milton Ontario, Canada
Iowa Arboretum, Madrid, IA
Iowa Arboretum
Madrid, IA
Star Roses and Plants, West Grove, PA
Star® Roses and Plants Trials
West Grove, PA

Certified Nurseries

Tyler, TX

Cincinnati Zoo

Cincinnati, OH

Colorado State University

Fort Collins, CO

Fort Worth Botanical Garden

Fort Worth, TX

The Gardens at Ball

West Chicago, IL

Green Leaf Plants

Smoketown, PA

University of Georgia

Athens, GA

University of Guelph

Guelph, ON, Canada

Iowa Arboretum

Madrid, IA

Landscape Ontario

Milton, ON, Canada

Longwood Gardens

Kennett Square, PA

Louisiana State University

Shreveport, LA

Metrolina Trial Garden

Huntersville, NC

Mississippi State University

Mississippi State, MS

North Dakota State University

Fargo, ND

North Carolina State University

Raleigh, NC

The Ohio State University

Columbus, OH

Penn State University

University Park, PA

Raker Trial Gardens

Litchfield, MI

Smith Gardens

Marysville, WA

Star® Roses and Plants Trials

West Grove, PA

Vanstone Nurseries

Portage la Prairie, MB, Canada