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CSU RESEARCH: 2021-22 Cool Season Trials Top Picks for Off-Season Color

This was the fourteenth year that Colorado State University (CSU) has conducted Cool Season Trials at the Annual Flower Trial Garden. The overall goal...

2022 California Summer Trials (CAST)

After two years that seemed like forever, it was great to attend California Annual Spring Trials (CAST) in person during its normal early spring...

CSU RESEARCH: First Year Perennials with Superior Flowering from 2021 Perennial...

The Perennial Trial Garden Committee at Colorado State University (CSU) met recently to determine which plants from our 2021 trial were “Superior First Year...

Top Annuals from CSU Annual Flower Trials

By James E. Klett, Ph.D. Professor & Landscape Horticultural Specialist Colorado State University During the week of August 3, 2020, only about 90 professionals evaluated the Annual...

Hellebores for Colorado

A robust, relatively new perennial to many Colorado gardens is the genus Helleborus (common name: hellebores). The leathery leaves, which are mainly evergreen, are...
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