Superior Herbaceous Perennials from Colorado State University
CSU RESEARCH UPDATE
By James E. Klett, Ph.D., CSU Professor & Extension Landscape Horticulturist; & David McKinney, CSU Undergraduate, Horticulture Major
Research continues on evaluating herbaceous...
Plant Select® 2021 Introductions
Plant Select® is the country’s leading source of plants designed to thrive in the high plains and intermountain region. It is a nonprofit collaboration...
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...
Seven “Top Performer” Perennials in 2023
The Colorado State University (CSU) Trial Gardens attract thousands of visitors to the campus each year. Trial Gardens include the Annual and Perennial Trial...
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...
CSU Research: “Top Performer” Perennials from the 2022 CSU Flower Trial
In 2022, Colorado State University continued its three-year herbaceous perennial trial and chose eight perennials as the ‘Top Performers’ from 113 that were planted...
Why You Should Pay Attention to Noxious Weeds
At his last count, State Weed Coordinator Steve Ryder of the Colorado Department of Agriculture (CDA) set the number of regular old weeds found...
CHREF Scholarship Winners Announced
By Mike Schleining, CCNP
CHREF Board Member
2015-16 & 2016-17 CHREF Scholarship Recipient
As you know, the Colorado Horticulture Research and Education Foundation (CHREF) relies on fundraisers...
Eight Top Picks from CSU Annual Trials
On Aug. 9, 2022 about 200 professionals evaluated close to 1,200 different planted annuals at the Colorado State University (CSU) Annual Flower Trials. Many...
Multi-Site Woody Plant Evaluation Update
By James E. Klett, Ph.D.
Professor & Landscape Horticultural Specialist
Colorado State University
The multi-site woody plant evaluation project continues to gather data on woody plant performance...



















