IV INTERNATIONAL SYPOSIUM ON GERMPLASM OF ORNAMENTALS

Put ISGO on your calendar!

August 3-8, 2025

Welcome to the IV International Symposium of the Germplasm of Ornamentals (ISGO), set to take place in Fort Collins, CO, USA. The theme of IV ISGO is ‘Climate Adapted Ornamental Plants’.

Important Dates & Program of Events | Partners | Conveners | Committees
Abstract and Paper Submissions | Sponsorships | Travel and Venue Information

Join us as we delve into the cutting-edge world of science and technology dedicated to exploring, preserving, and enhancing the germplasm of ornamentals. Together, we are forging a path toward a more sustainable and efficient future for ornamental plant production and utilization. Join us in Fort Collins and be part of this exciting journey!

In this Symposium, we want to bring together researchers from many disciplines around the world who share an interest in the following overlapping topics:

  • Plant exploration, discovery, and utilization
  • Germplasm resources, conservation, and sustainability
  • Genetic improvement
  • Applications of modern biotechnology
  • Environmental physiology and landscape performance
  • Biotic stress physiology of new plants
  • New uses of ornamental plants

    Important Dates

    ISGO | August 3-8, 2025

    • Start of abstract submission | 1 August 2024
    • Deadline for abstract submission | 1 March 2025
    • Early registration | 21 May 2025
    • Accepted Abstract Author Registration | 30 June 2025
    • Deadline for full paper submission | 1 July 2025
    potato seedling

    Symposium Fees and Registration

    Early-bird rate (by May 21, 2025):

    • ISHS member registrations – $595
    • Non-ISHS member registrations – $715
    • Student registrations – $345
    • One-day registrations – $395
    • Monday tour – $125
    • Friday tour – $125

    Regular rate:

    • ISHS member registrations – $695
    • Non-ISHS member registrations – $815
    • Student registrations – $445
    • One-day registrations – $465
    • Monday tour – $150
    • Friday tour – $150

    Your registration fee includes online access to the electronic version of the Acta Horticulturae symposium proceedings.

    Program of Events

    As the agenda details are finalized, additional information will be added here

    Sunday, August 3
    • Registration and Welcome
    Monday, August 4
    • Conference tour of Denver Botanic Garden
    Tuesday, August 5
    • Half-day presentations
    • Tours (CSU Trial Gardens, USDA Plant Germplasm Center, and Gardens on the Spring Creek)

     

    Wednesday, August 6
    • Full-day of Presentations
    Thursday, August 7
    • Full-day of Presentations
    Friday, August 8
    • Full day tour of alpine plants in Rocky Mountain National Park

    Featured Speakers

    Dr. Lisa Alexander

    Dr. Lisa Alexander - United States National Arboretum

    Development of germplasm resources for Hydrangea quercifolia: collection, characterization, and strategies for breeding improvement

    Dr. Jennifer Bousselot

    Dr. Jennifer Bousselot - Colorado State University

    Beyond Beauty: How Rocky Mountain native plants improve our lives

    Dr. Qixiang Zhang

    Dr. Qixiang Zhang - Beijing Forestry University

    Ornamental germplasm resources and innovation in China

    Dr. Yi Li - University of Connecticut'

    Dr. Yi Li - University of Connecticut'

    Toolbox for Ornamental Plant Breeding: What’s Available and How to Decide—Case Studies Included

    Conveners​

    Mengmeng

    Dr. Mengmeng Gu

    ​Department of Horticulture & Landscape Architecture​
    Colorado State University​
    Fort Collins, Colorado, USA

    mengmeng.gu@colostate.edu​

    Youping Sun

    Dr. Youping Sun

    ​Department of Plants, Soils & Climate​
    Utah State University​
    Logan, Utah, USA

    youping.sun@usu.edu

    IV International Symposium on Germplasm of Ornamentals Committee

    Local Organizing Committee

    Dr. Jennifer Bousselot – Colorado State University

    Dr. Daniel Bucham – Colorado State University

    Dr. Jim Klett – Colorado State University

    Dr. Tony Koski – Colorado State University

    Dr. Chad Miller – Colorado State University

    Dr. Alison O’Connor – Colorado State University Extension

    Dr. Gayle Volk – USDA ARS

    Mr. Phillip Douglas – Denver Botanic Gardens

    Mr. Ross Shrigley – Plant Select

    Editors

    Dr. Mengmeng Gu – Colorado State University

    Dr. Qixiang Zhang – Beijing Forestry University

    Dr. Youping Sun – Utah State University

    Scientific Committee

    Dr. Yen-Ming Chen – National Chung Hsing University

    Dr. Sumei Chen – Nanjing Agriculture University

    Dr. Ryan Contreras – Oregon State University

    Dr. David Creech – Stephen F Austin State University

    Dr. Seung Youn Lee – Andong National University

    Dr. Qianqian Sheng – Nanjing Forestry University

    Dr. Donglin Zhang – University of Georgia

    Dr. Zhanao Deng – University of Florida

    Editorial Board Member

    Dr. Lisa Alexander – USDA ARS

    Dr. Hsuan Chen – North Caroline State University

    Dr. Jongyun Kim – Korea University

    Dr. Byoung Ryong Jeong – Gyeongsang National University

    Dr. Yu Ma – USDA ARS/ Ohio State University

    Dr. James Robbins – University of Arkansas (Retired)

    Dr. Ping Yu – University of Georgia

    Dr. Chao Yu – Beijing Forestry University

    Dr. Longqing Chen – Southwest Forestry University

    Dr. Neil Anderson – University of Minnesota

    Dr. Bin Wu – Texas A&M University

    Dr. Xingbo Wu – University of Florida

    Dr. Ming Cai – Beijing Forestry University

    Dr. Wusheng Liu – North Carolina State University

    Dr. Margherita Beruto – Regional Institute for Floriculture

    Dr. Yen-Ming Chen – National Chung Hsing University

    Dr. Sumei Chen – Nanjing Agriculture University

    Dr. Seung Youn Lee – Andong National University

    Dr. Lloyd Nackley – Oregon State University

    Dr. Qianqian Sheng – Nanjing Forestry University

    Dr. Johan Van Huylenbroeck – ILVO

    Abstract and Paper Submission

    Instructions & Guidelines

    Additional Submission Information
    • Only abstracts submitted in English will be reviewed.
    • Abstracts must not exceed 300 words.
    • Abstracts must not contain tables, pictures or graphs.
    • All abbreviations must be spelled out on first use.
    • Abstracts should be thoroughly checked for spelling and grammar.
    • An abstract submission charge is due upon submission of an abstract and applies to the presenting author only. For ISHS Individual members, the abstract submission charge is fully waived.
    • Those who do not hold a user account with ISHS yet: create an ISHS user account first. After payment and activation of your user account, you can start your abstract submission.
    • Abstracts must always be submitted by the presenting author, using their own personal ISHS user account. Submitting an abstract on behalf of, or using the ISHS user account of another author is strictly prohibited. Abstracts must be submitted by 1 March 2025 for consideration by the Scientific Committee. Authors will be notified of provisional acceptance of abstracts beginning on 20 January 2025 and will also be notified if the abstract has been selected for an oral or poster presentation.
      • All oral presenters, including invited and keynote speakers, must submit a manuscript for Acta Horticulturae according to the Acta Horticulturae guidelines ( https://www.ishs.org/authors) by 1 July 2025. (Alternatively, presenters have the option to submit a full scientific manuscript on the topic presented at the symposium to the ISHS Scientific Journal in lieu of submitting a manuscript for Acta Horticulturae). Oral presenters who fail to submit a manuscript for publication in Acta Horticulturae or the ISHS Scientific Journal may be refused the floor for making their oral presentation. Authors of posters are strongly encouraged to prepare and submit a manuscript for Acta Horticulturae.

      • Presenting authors of abstracts accepted for presentation (both oral/poster) must register for the symposium by 30 June 2025. Failing to register for the symposium will result in your abstract being withdrawn from the symposium program and your manuscript being withdrawn from the Acta Horticulturae symposium proceedings.
        • Failing to present (oral/poster) at the symposium will result in your manuscript being withdrawn from the Acta Horticulturae symposium proceedings.

        • Early registration: 21 May 2025

        Those who do not hold a user account with ISHS yet: create an ISHS user account first. After payment and activation of your user account, you can start your abstract submission.

        Our Partners

        ISHS Logo
        CSU
        Utah State
        Colorado Nursery and Greenhouse Association logo
        Denver Botanic Gardens logo
        Flower Industry Logo

        Learn More about the International Society for Horticultural Science

        Travel and Venue Information

        Accommodations

        A block of rooms have been reserved at the Hilton Fort Collins for the International Symposium Germplasm Ornamentals (ISGO) Room Block Aug2025 with a Sunday, August 03, 2025 arrival.  Please call (800)768-0605 and ask for the International Symposium Germplasm Ornamentals (ISGO) Room Block Aug2025 or reserve using the link below. You will be able to book in the block at the group rate of $169.00 per room, per night, single/double occupancy, for a standard room with one king or two double beds. Parking is available for $15.00.

        The room rate, room block and parking will be available until Sunday, August 10, 2025, or until it is sold out, whichever happens first.

        The Hilton Hotel in Fort Collins

        Air Travel

        Denver International Airport (DEN) is the closest airport, about an hour south of Fort Collins, Colorado. For transportation from Denver International Airport, visit Transportation | Visit Fort Collins (visitftcollins.com)

        Cities and Towns Near Fort Collins

        Venue and Local Attractions

        A man walks through the CSU Trial Gardens and admires the flowers.

        Colorado State University 

        Colorado State University’s campus is known for its vibrant community. CSU offers a diverse range of academic programs and research opportunities, creating a dynamic and inspiring place for growth and learning. With a strong emphasis on student success, CSU Fort Collins combines academic excellence with the natural beauty of Colorado.

        Fort Collins

        Fort Collins, Colorado, is a vibrant destination for international visitors with a keen interest in landscape plants and gardens. Nestled at the foothills of the Rocky Mountains, this city boasts a plethora of beautiful parks, botanical gardens, and green spaces. Highlights include the Gardens on Spring Creek, a community horticulture center featuring themed gardens, a butterfly house, and educational programs. Fort Collins offers a blend of natural beauty and innovative garden design, making it an ideal spot for garden enthusiasts to explore and enjoy.

        For those interested in landscape plants and gardens, Fort Collins and surrounding areas offer several beautiful and diverse locations to explore.

        An exterior photo of the Nutrien Building
        Other Areas to Explore
        • The Gardens on Spring Creek: This 18-acre botanical garden features various themed gardens, including a Children’s Garden, Foothills Garden, Prairie Garden, Rock Garden, and several specialty gardens like the Butterfly/Hummingbird Garden and the Moon Garden. It also hosts a Butterfly House with over 300 North American butterflies. For more information, visit The Gardens on Spring Creek.
        • Colorado State University Flower Trial Garden: Located at the northeast corner of College Avenue and Lake Street, this garden displays over 1,200 varieties of flowers that are evaluated under Colorado’s extreme climatic conditions. It’s a great place to see vibrant and diverse plant species. Details can be found at the CSU Flower Trial Garden.
        • Colorado State University Heritage Arboretum: The Heritage arboretum is the main site for woody plant research trials in the region and contains more than 1,100 different plant taxa.
        • Denver Botanic Gardens: Features themed gardens like a Japanese garden, South African Steppe garden, and an Alpine rock garden, along with a tropical conservatory.
        • Cheyenne Botanic Gardens: Features the Shane Smith Grand Conservatory, Paul Smith Children’s Village, and extensive gardens showcasing diverse plant collections.
        • High Plains Arboretum: A historic 62-acre site where hardy trees, shrubs, and flowers were tested for survival in the High Plains’ challenging climate.
        • Nix Native Plant Garden: This garden showcases a variety of native plants and provides design and planning tips for incorporating these species into home landscapes. It is located at the Natural Areas Department’s offices on Hoffman Mill Road. More information is available on the City of Fort Collins website.
        • Horsetooth Mountain Open Space: While not a traditional garden, this open space offers stunning wildflower hikes, especially around Horsetooth Falls, where you can see beautiful wildflowers in their natural habitat. Learn more at Horsetooth Mountain Open Space.