Copyright © 2013 Regents of the University of Minnesota. All rights reserved.
Classes and Characteristics
Performance and Evaluations
Colors and Color Patterns
Comparison of Floral Traits
What Cold Hardiness Is
Observations of Injury
Definitions and Descriptions of Winter Injury
Effects of Snowcover
Winter Injury During Acclimation
Air Temperatures and Snowcover at the Minnesota Landscape Arboretum
Quantifying Winter Hardiness in the Laboratory
Hardiness Determinations in Containers
Winter Hardiness Comparisons of Field and Container-Grown Roses
Winter's Effect on Size and Habit
Descriptors for Growth Habits of Rose Cultivars
Observing the Diseases
Patterns and Trends
Rose Stem Borer
Mossy Rose Gall
Water, Mulch, and Fertilizer
Pruning and Winter Protection
Authors: Kathy Zuzek and Steve McNamara are horticultural scientists at the University of Minnesota Horticultural Research Center. Marcia Richards is a volunteer research assistant at the Center. Harold Pellett is a professor of horticultural science at the Minnesota Landscape Arboretum. The Arboretum and the Research Center are both located in Chanhassen, Minnesota.
Acknowledgements: The authors wish to gratefully acknowledge Deborah Brown, Sam Brungardt, Bob Mugaas, and Don Selinger for their comments on this manuscript. The authors also wish to acknowledge the staff and volunteers of the Minnesota Landscape Arboretum who helped maintain and evaluate the roses for this study.
Photo editing was by Dave Hansen of Communication and Educational Technology Services. Photography was by Dave Hansen, Kathy Zuzek, Marcia Richards, Steve McNamara and Jody Fetzer. Publication design was by Larry Etkin and John Molstad of Communication and Educational Technology Services. Illustrations and artwork were by John Molstad and Jeff Davel. Publication manuscript editing and product management for the Minnesota Agricultural Experiment Station was by Larry Etkin.
Production of this publication was supported with funds from the Minnesota Agricultural Experiment Station.'Harison's Yellow'
In accordance with the Americans with Disabilities Act, this material is available in alternative formats upon request. Please contact your University of Minnesota Extension office or the Extension Store at (800) 876-8636.