REMINDER: 2016 OSU/AmericanHort Poinsettia Trials Open Houses Begin this Week!

The holidays are fast approaching – and yIMG_2007ou are cordially invited to the following Ohio greenhouses to see new and traditional poinsettia cultivars on display. Please reserve the following dates and times to attend. No reservations are needed.  Come view and evaluate new cultivars and network with other growers.

  • FRIDAY, DECEMBER 2 – 1:00 – 3:00 PM
    Bostdorff Greenhouse
    18832 N. Dixie Highway
    Bowling Green, OH 43402
  • WEDNESDAY, DECEMBER 7 – 1:30 – 4:30 PM
    HJ Benken Florist & Greenhouse
    6000 Plainfield Rd.
    Cincinnati, OH 45213-2335
  • FRIDAY, DECEMBER 9 – 1:00-3:00 PM
    Barco and Sons, Inc.
    6650 Branch Rd.
    Medina, OH 44256

Questions?  Please contact Dr. Claudio Pasian at 614-292-9941

OSU Cultivar Trials: 2016 Season Summary

By William Barnhill, Claudio Pasian, and Tim Rhodus

Department of Horticulture and Crop Science, The Ohio State University

The 2016 summer trial was successful and showcased 607 plant entries representing 24 different commercial brands. Details can be found in the OSU Cultivar Trials: 2016 Season Summary.



2015 OSU Cultivars Trial Open House

Thursday July 30, 2015

Department of Horticulture and Crop Science

2001 Fyffe Ct.  Columbus, OH 43210

If you missed the opportunity to evaluate our plants during Cultivate 15, do not miss this second chance to evaluate plants responses to a very rainy spring and summer.

10:00 AM: Presentation about the trials

10:30 AM: Tour Cultivar Trials, in Ground & Containers

12:00 Noon:  Box lunch

1:00 to 3:30 PM:  Presentations by three speakers:

  • Bob Croft (Sakata)
  • Pamela Bennett (OSU Extension)
  • Michelle Jones (OSU/OARDC, Wooster)

OCNT, Landscape Industry Certified, and pesticide credits will be available.

Cost:  $15 (before July 11) or $18 (after July 11). This will cover the cost of the box lunch, refreshments, parking permit, and handouts.  Send a check payable to The Ohio State University, attention Claudio Pasian, at the address listed above and call Dr. Pasian at 614-292-9941 indicating the number of participants.

The OSU Cultivar Trials are partially supported with a generous donation from:  Ohio Nursery and Landscape Association and AmericanHort

With your car, come first to the turnaround of Fyffe Court (in front of the main entrance of Howlett Hall) and someone there will give you the parking permit.  Proceed then to park your car and come to 103 Kottman Hall.  

For more information, please contact Dr. Claudio Pasian:

Digital Evaluator – An App for Trial Gardens

By Dr. Tim Rhodus, Professor and Elaine Eberlin, Systems Specialist
Department of Horticulture & Crop Science, The Ohio State University and
Online at:

The following article was first published in the June 2015 issue of the Buckeye Bulletin, ONLA.

This article describes the Ohio State University Cultivar Trials and how an app was created to assist in organizing and managing the evaluation and communication program for the garden. Initially conceived by Dr. Claudio Pasian in 2002, the Ohio State University Cultivar Trials are conducted each year in order to evaluate ornamental bedding and container plants. The objective of these trials is to observe the performance of new and recently introduced cultivated plant varieties under environmental conditions typical of central Ohio.

The OSU Cultivar Trials contain four categories of plants: field (ground beds), containers in the sun, containers in the shade, and hanging baskets. During the growing season, all plants are evaluated four times by Master Gardener and Chadwick Arboretum volunteers. These consumer evaluators are asked to rate each plant from 1 – 5 on how well they “like” the plant. Additionally…….

To read the article go to:

Results and photos of the 2014 trials can be found at:



Utilizing Plant Trial Evaluations

The number of plants available in the industry today can be overwhelming!  How do you as a grower or a garden center retailer sift through the exhaustive listings of new and not-so-new plants to determine which to grow and offer for sale?  Seeing and understanding how plants grow and perform in a garden setting alongside their peers allows you as the producer/retailer to select plants that should perform well for consumers in your target market – whether that target market is within your zipcode or hundreds of miles away.  Many universities, public gardens and young plant producers participate in plant evaluation trials – but where are they located and how do you use the information they generate?

A fairly new resource, the Plant Trials Database ( was designed to provide standardized information that can be used by the horticulture industry.  A standardized trialing protocol was developed for all trial gardens to follow as well as minimum scoring procedures.  The participating trial gardens and breeders are listed.  Access to the database is currently limited to professionals in the horticulture industry, such as growers, retailers, educators, and others.  Please visit the database website to request access on trial results.

To directly visit the OSU trial websites, you may access them via the database or using the link below.

OSU – Columbus, OH: