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All About Flower Shows

Let’s grow to show for the fun of it!

Why have a Flower Show?

Flower shows are fun, interesting, educational, and creative.

How to Organize a Show

To organize a Show, please contact one of your local judges. Judges possess a wealth of useful information and experience on how to set up a show, write a schedule and help coach people to enter and have fun exhibiting.

We also have a great reference books the OHA Virtual Flower Show Guidelines and  Ontario Judging and Exhibiting Standards (OJES 2019). This book tells exhibitors what a judge is looking for when judging a flower show’s floral designs and horticultural specimens (cut flowers, vegetables, potted plants, terrariums and trough gardens etc.). It includes everything you need to know about staging a flower show, and how to prepare your entries. The rules and guidelines in this book will be used by the judge to assess the quality of exhibits and the awarding of prizes. OJES 2019 is available for purchase from the OHA Supplies Coordinator. You can also check with a local judge as they will certainly have a copy.

Briefly, a Show includes flowers, plants, fruit, vegetables, floral designs and special exhibits. The objectives of a Show are to: educate, stimulate interest in horticulture, provide a venue for creative expression, encourage community participation and have a project in which all members can participate. You may want to just start out with a mini show (just a few classes) at one of your meetings. How about a Veggie Mini show at a Fall meeting to show off some of the popular veggies that are in season? Or what about a mini Houseplant show in April? What about taking a road trip to see a show in your District? Check with other local societies and go see a show in person. Invite a local Judge to present a talk on how to exhibit in a show or give a demonstration on floral designs and special exhibits. We encourage societies to try and have a Standard Flower Show with at least two divisions, which must include one Horticultural and one Design Division. You just need a few people with an interest in gardening and a willingness to help with ideas for a show.

The key is to have fun!

Things you need to think about

The Show Committee: These individuals can help with the organizing. Don’t forget to involve local judges and members with experience in showing. Check with your District Director for suggestions.

Writing a Schedule and Rules: Once the date, location and theme have been set, preparing the schedule to conform to the season is the first and most important organizational task. Efforts should be made to have the Show conform to Ontario Judging and Exhibiting Standards for Horticulture and Floral Design.

Selecting a Judge: The choice of judges is based on their training, qualifications and experience. It is unwise to invite the same judge(s) to perform in successive Shows. A minimum interval should be established. Check the Judges List here on the web site to find local Judges

Awards: What kind of awards do you think best fit? Ribbons, certificates and cash prizes are options to consider. Donations and/or prizes received from the business community and from private donors should be publicly acknowledged.

Your show schedule should be clear and easy to read and yet be specific enough that people know what to enter and how.

Useful Guides for Show Organizers, Judges & Competitors

The following guides will be helpful to both judges and competitors:

OHA Photography Judging Guidelines

OHA Virtual Flower Show Guidelines

Welcome to SHOWTIME

Hot off the press…

Showtime Volume 4-22

Showtime Volume 3-21

Showtime Volume 2-21

Showtime Volume 1-21

Please let us know if there is a topic you would like to see or if you have a question or quandary you would like answered. SHOWTIME’s goal is to provide articles of interest from all viewpoints. We hope you will provide feedback
and send us suggestions on articles, topics, and questions.

If you like writing or have an area of interest or expertise, send us an article. Email us for more details at ohajudges@gmail.com

Gardens of Red

Hello Members of the OHA, Please post pictures of your gardens of red  on the link below. https://livethegardenlife.gardenscanada.ca/plant-red/ Also remember the deadline for sending your garden pictures to your OHA directors is August 31 not July 31. My mistake....

Garden Hero Nominations

Garden Hero nominations have been extended! Please let Katharine Smyth  know who your garden hero is as the names will be read out at the Ontario Horticultural Association AGM July 16, 2022. Please remember to register to attend. Also, Don't forget to register your...

The Summer Issue of Trillium is here!

Available now, the summer issue of the OHA Trillium newsletter encourages a variety of exciting “Year of the Garden” projects and each club/society can participate as well as each individual. Don’t miss the opportunity to enter the 50/50 Cash raffle to not only...

The Ontario Horticultural Association receives acknowledgement from the Canadian Garden Council

Congratulations for being one of the 100 Garden Moments we announced today. In celebration of Canada’s Year of the Garden 2022, we thought it would be appropriate to identify 100 ‘Garden Moments of Canada’. Events, activities and organizations that have contributed to...

OHA Garden Ontario 50/50 Fundraiser

The OHA (Garden Ontario) is excited to announce our quarterly 50/50 Fundraiser using Rafflebox. Purchase tickets today and help keep Ontario beautiful. The OHA believes gardening is a way to preserve and restore the natural environment which helps create quality of...

Warning: Unsolicited Shipment of Foreign Seeds

If you receive an unsolicited shipment of foreign seeds in the mail from China or Taiwan DO NOT plant or dispose of them. Unauthorized seeds could be the seeds of invasive plants, or carry plant pests, which can be harmful when introduced into Canada. These species...

Box Tree Moths

https://youtu.be/bFyqWK9O1NI Information from Hannah Fraser, Entomologist for Horticulture Crops with the Ontario Ministry of Agriculture, Food and Rural Affairs. We are supporting a survey for box tree moth (Cydalima perspectalis).  Native to east Asia, the box tree...


Orders can be placed for Agra-Wool through your District Director.   Payment will be sent to the Garden Supplies Coordinator Rose Odell at wonkylady@gmail.com by e-transfer.   Orders can be picked up from Rose Odell by arrangement.   The cost is $78.00...

Answers to Your Questions and Quandries


Design Classes

Q. How do I judge a design with artificial flowers or foliage?
A. Read the schedule carefully if it is permitted in the rules then you judge based on the principles and elements. If the schedule indicates no artificial or says follow OJES then you would have to disregard the design but add a very kind comment that lets them know that either the schedule and or OJE does not permit artificial materials. Some fairs do have a section for a design done with artificial flowers and, here again, the elements and principles apply just like a design with live plant materials.

Fruit and Vegetable Classes

A. How do you judge a sunflower seed head?
A. It is a horticultural specimen and should be viewed as a Vegetable and or Fruit – One entry with a scale of points – Condition 40 Form and Color 30 Size typical of cultivar 20 Distinction 05 Named 05.

Perennial Classes

Q. In the ‘Any other Perennials Class’, would the following specimens be entered: Hydrangea, Spirea, Butterfly Bush, and a bedraggled Heliopsis? Are Hydrangea, Spirea, and Butterfly Bush considered Perennials?
A. Hydrangea, Spirea, Butterfly Bush are all Shrubs, Shrubs are defined as a woody perennial plant. SO yes, they are Perennial. You would also have to look carefully at the schedule to make sure there was no other class such as Flowering Shrub that they should have been entered in. Often an Any Other Perennial class is listed as Any Other Perennial (not listed above).

Photography Classes

Q. If a photography class asks for flowers, should it be interpreted as more than one?
A. An entry with just one flower should not be disregarded. You are looking for overall artistic merit of the entries.

Youth Classes

Q. How do you judge a “children’s” arrangement when it looks very much like an adult has done most of it?
A. This is a very difficult question. You don’t want to discourage children who have done all the work themselves, but you also don’t want to be accusing a child of getting too much help. As with adults, if it is on the table and was passed by the passing committee then you must judge it. There is no easy way other than to have a quiet word with the Show Chair afterward.



It's Show Time

Q. Once a judge has made a decision, it has been recorded by the clerk, ribbon placed, and the winner announced would it be unethical for the judge to change their mind the next day and change the prize list?
A. Yes, it would be unethical and unprofessional. As a Judge, you need to carefully make a choice and once that choice has been recorded and announced, you should not change your decision.

Q. Should Clerks be talking while judging is ongoing?
A. OJES Page 24 Clerks should not offer Advice or unwanted information and should not follow judges too closely unless invited. The Show Chair or designate should be available. If a clerk is distracting, you politely ask them to stay back a bit and refrain from comment as it distracts you from giving full attention to the job at hand. A quiet word with the Show Chair afterward may help to make sure the Clerk does not distract in the future.

Compliance and OJES

Q. Are there any sanctions in place for judges found not complying with good judging ethics? Can a Society put questions of this nature to the OHA Executive?
A. There is no formal complaint mechanism set up by the OHA to deal with Judging Ethics. However, the OHA now has a Judging Committee so the concern could be communicated to the Committee for its consideration. The easiest way is to make sure you do not ask the Judge in question to judge again. Word does get around about a Judges reputation.

Tips for Judges

Q. When Judging scented Roses, what can be done to prevent scents from overwhelming your sense of smell?
A. Bring a few coffee beans in your pocket and smell them between the different entries. It helps to clear your nose.

Ontario Judging and Exhibiting Standards for Floral Design and Horticulture (OJES) Revised 2019 Edition Available Now!

OJES 2019 is a reference publication that covers a variety of topics related to the organization and running of a flower show. It includes schedule writing, information on classes of plants to include, and the standards regarding judging of horticultural specimens and floral designs. It addresses everything you need to know about staging a flower show and preparing your entries. The rules and guidelines in this book will be used by the judge to assess the quality of exhibits and the awarding of prizes. This publication is a joint effort of the OHA and GCO. OJES 2019 is used by Judges as a reference when they judge and is a training book for new judges. OJES 2019 can be ordered from the OHA Garden Shop

For a look at what’s new, please click here.

Judging Forms and Applications

Please check the Resources Page for our Judging Committee Forms and Applications

OHA Judges List

For a list of all OHA-certified and otherwise-certified judges please search our Judges List. If you have questions about judging or the judges list, please email us.

To access judging forms and applications, please see our resource library under Shows and Judging

Covid-19 has affected the ability of Judges to participate in 2020 events that would count towards their credential requirements. The lack of opportunities to enter shows, take updates, give demonstrations/talks, attend seminars or presentations means that those Judges who would have the year 2020 as part of their 3-year renewal period are at a disadvantage.

To address this issue judge’s renewal dates will be deferred as follows:

  • 2021 renewal dates will be deferred to 2022,
  • 2022 renewal dates will be deferred to 2023, and
  • 2023 renewal dates will be deferred to 2024

If you have any questions about this please contact us at ohajudges@gmail.com

All judges will be notified by the OHA Judges Registrar of these deferrals. It is hoped that 2021 will have opportunities to participate in credentials events. Please make sure you take advantage, if possible, of any virtual Judges updates. Virtual demonstrations, seminars, and presentations on design and horticulture taken by judges or given by judges will also count. Please keep track of times, dates, and topics covered for your renewal form. Please print off a revised renewal form (updated Oct 27/20).

Information on Judges Updates will be posted on the web as soon as the Judging Committee becomes aware of them. Districts are asked to keep the Judging Committee advised of judges updates they are offering by emailing: ohajudges@gmail.com

Upcoming OHA Judges Schools and Updates

Listed below are contacts and dates for Judges Schools & Updates:

Course TypeDistrictLocation of CourseNext Course
Update10Thorndale Community Centre, room #3Wed., Oct. 12, 2022
Course TypeDistrictLocation of CourseNext Course

About the Judging Committee

The OHA Judging Committee provides guidance and support to the OHA to ensure sustainability and succession planning associated with judging and judges. The Committee is made up of the Chair, selected members, the Judging School/Updates Coordinator, and the Judges Registrar.

Ontario Judging Committee Contact List

Contact the Committee at: ohajudges@gmail.com

Chair: Penny Stewart

Members: Marg Laman, Kathryn Lindsay, Sharon Nivins, Jim Mabee, Anne Harbord, Catharine McGill and Linda Bartlett

Judges Registrar: Sharon Nivins

Judging School/Updates: Jim Mabee

The Committee is responsible for

  • ensuring consistency in the training, updating and use of OHA judges across Ontario;
  • guiding and supporting the work of the OHA Judging School/Updates Coordinator;
  • guiding and supporting the work of the OHA Judges Registrar in maintaining and promoting the OHA Judges Registry; and
  • providing guidance on judging best practices (e.g. registry of Q&As).

It maintains contact with other organizations involved in similar work (e.g. Garden Clubs of Ontario, Royal Botanical Gardens, and Ontario Association of Agricultural Societies).

Judges Learning Library

The OHA encourages districts to work with our Judging Committee and our Judging School/Updates Coordinator to offer Judging Updates to help judges stay current. All documents are in pdf format.

Judges Comment Writing   |  Judges Ethics & Etiquette  |  Judges, How to Exhibit  |  Judges Show Schedules | Judges Photo and Virtual Show Guidelines

Have a Question about Flower Shows or Judging? Email us!