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Using Public Gardens to Prevent Future Invasive Plants

April 21 @ 12:00 pm - 1:00 pm

Public Gardens as Sentinels against Invasive Plants (PGSIP) is a recent initiative aimed at improving the availability and use of information from public gardens to determine which ornamental plant taxa demonstrate the risk of becoming invasive before they are broadly distributed in trade.

Public gardens observe plants of horticultural significance escaping from cultivation on their properties. This can be an early signal of concern for plant taxa not widely known to be invasive. However, to date, information about taxa escaping from cultivation has not been shared among public gardens or with other stakeholders, making public gardens an underutilized resource in preventing future invasions.

The learning objectives in this panel discussion are:

1) Attendees will understand the PGSIP project concept and goals
2) Attendees will learn a few early examples of ornamental species showing early signals of invasiveness in the Midwest
3) Attendees will understand how information forthcoming from PGSIP can eventually be integrated into their work and designs

Date:             April 21, 2022
Time:                12-1pm CS
Cost:              ILASLA Members: Free  |  Non-Members: $10
Cost:              ASLA Members: Register as a Guest and Use ASLA2022 for a discounted Member Price
Credit:              1 LA CES
Speakers:      Kurt Dreisilker, the Morton Arboretum, and Theresa Culley, University of Cincinnati




Speaker Bios

Kurt Dreisilker has been with The Morton Arboretum for 20 years where he is now the Head of Natural Resources and Collections Horticulture. His work involves restoring the natural ecosystems of northern Illinois found within the Arboretum, engaging the public by training citizens to do the same in their communities, maintaining horticultural care of the Arboretum’s living collections of trees and shrubs, and collaborating with numerous organizations on local, national, and international scales. A component of his work includes managing and preventing the spread of invasive plants in Northeastern Illinois. He serves as a Board officer for the Midwest Invasive Plant Network and is particularly interested in engaging public gardens in helping to prevent future invasive plants as a co-lead of the PGSIP project. He has a B.S. in Plant Biology and an M.S. in Natural Resources and Environmental Science from the University of Illinois at Urbana-Champaign.


Theresa Culley is the Department Head of Biological Sciences at the University of Cincinnati. Her lab’s work focuses on the evolution of plant breeding systems and subsequent effects on the genetics of plant populations. In addition, Dr. Culley is active with both the Ohio Invasive Plants Council and the Midwest Invasive Plant Network. She is working on projects to develop and implement assessment protocols for invasiveness, to improve the availability of peer-reviewed literature for assessments. Theresa is also a co-lead for the PGSIP project aimed at collecting and sharing observations from public gardens about plants escaping from cultivation. Theresa holds a B.S. in Biology from the University of California-Irvine and a Ph.D. in Evolution, Ecology, and Organismal Biology from The Ohio State University.


April 21
12:00 pm - 1:00 pm


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