University of Guelph Trial Garden Plant Agriculture
University of Guelph
This Year's Trials

Trial Garden Updates



Trial Garden Open House Dates for the 2013

Industry Open House Days

* Friday, August 16 - Industry Open Houses at the Milton (9-noon)  and Guelph Trial Garden (1-3:00pm)

* Wednesday, August 21 - Industry Open House at the Vineland Research Station

Public Open House Days

* Saturday, August 17 - Public Open House at the Milton Trial Garden (10:00 am - 3:00 pm)

* Tuesday, August 20 - Public Open House at the Guelph Trial Garden (noon until 8:00 pm)










Public Open Dates for the 2012 Trial Gardens

  • Guelph Trial Garden (located at the Guelph Turfgrass Institute) on Wednesday, August 15, 2012 from noon until 8:00 pm.
  • Landscape Ontario/UofG Trial Garden at the Landscape Ontario office in Milton on Saturday, August 18, 2012 from 10:00 am until 3:00 pm.

Industry Open House Dates for 2012


Industry Open House for Trial Gardens on Friday, August 17, 2012

Location (1) – Landscape Ontario Office in Milton from 9:00 am to noon

Format (1) – short speaker program followed by trial garden tour

  • (topics of the speaker program currently include “Ash tree alternatives for Ontario” and “Roses for the 21st Century Landscape”)

Location (2) – Guelph Turfgrass Institute from 1:00 pm to 3:00 pm

Format (2) – tours of trial gardens with an optional turf research overview


Grower Open House Day at Vineland for Vegetative Annual Cultivar Trial on Tuesday, August 21, 2012

Location – Vineland Research Station Greenhouses from 10:00 am to 3:00 pm

Format – informal drop-in to view container trials




Link to Open House  Comments from the Chair

(scroll down to Aug..28)

2011 Open House Favourites

The following list reflects public and industry opinions of what was looking nice in the trial gardens between Aug.12 and Aug.17/ 2011.  As such it is simply a snapshot of that moment in time and must be interpreted as such.   A more comprehensive list of  good garden performers will be published in the near future.

We have a field grown cutflower trial associated with the Guelph trial beds.  Visitors to the garden were enamoured with these two cutflower cultivars as garden plants:

1) Celosia 'Tornado Red' - a cockscomb type that was stunning

2) Eustoma 'ABC 2-4 Misty Blue' - a tall lisianthus that never fails to catch the attention of visitors.


Here are some other favourites


Eritrichium 'Baby Blues' (alpine forget-me-not)

Hibiscus 'Luna Red Improved'

Rudbeckia maxima


Top Coleus

Solenostemon 'Henna'


Top Petunia

Petunia 'Sweetunia Black Satin'


Top Combos

Tied for First

Confetti Liner 'Water Colors'

Kwik Combo 'Grape Expectations'


Top Zinnia

'Zowie Yellow Flame'


Top Verbena-Tied for First

Verbena 'Temari Blue'

Verbena 'Twister Pink'


Other Frist in their categories

Capsicum 'Black Pearl'

Dahlia 'Durango'



2011 Trial Garden Events

Open House Dates Set for the Landscape Ontario Trial Garden Site in Milton

August 12, 2011 - Horticultural Industry Day

click here for the flier

August 13, 2011 - Public Open House

click here for the flier

Public Open House Day at the Guelph Trial Garden

August 17, 2011 - from noon until 8:0 pm

click here for the flier




2010 Trial Garden Events

Upcoming Trial Garden Events (see below for important links and fliers)

1) Click Here for a map to Guelph Trial garden

2) Click Here for a map to the LO Trial garden

3) Public Open House in Guelph (Aug.17) - for information click here

4) For Horticultural Plant and Design Show click here

5) Industry Day (Aug.20) - click here

6) Public Open House in Milton at the Landscape Ontario office - click here




Guelph Trial Garden Open House for the Public on August 17, 2010

Come and see more new annuals and perennials for next year’s gardening. Vote on your favourites.  See our All-America Selections judging trial, vegetables for small urban spaces, cut flowers and more! (click here for the flyer)

NEW this year is our invitation to you to participate in the 1st Annual Trial Garden Horticulture and Design Show(click here for entry rules)

POSTED July 19, 2010


Thanks to some folks from Landscape Ontario for directing me to this Google site.  The picture was taken in the summer of 2009.  The bright colours you see in the trial beds are petunias and geraniums (pelargoniums).

LO Trial Garden from Space

POSTED January 20,2010


Looking back at the 2009 trial season


August 20, 2009 openhouse2
Visitors to the Horticultural Industry Open House at the Trial Gardens in Milton on August 20, 2009



To download a "pdf" copy of the "New Plants" presentation given at Canada Blooms by Rodger Tschanz on March 20, 2009 , click here! [2.45 MB]


Trial Garden Open House for the Public at the University of Guelph, August 18, 2009 from noon until 8:00pm

Trial Garden Open House for the horticultural industry on August 20, 2009 ( at Milton and Guelph)

posted December 15, 2008

Plans are being finalized for the 2009 trial season; a greenhouse pack trial, a garden and container trial and a landscape trial will be part of 2009 opportunities.   To find out more about the upcoming landscape trial, click here - LO2009Trial


posted October 17, 2008

A number of selections from the joint ornamental Trial Gardens at the University of Guelph and Landscape Ontario, Milton will be on display at this year's Garden Expo.  To find out more about these plants, follow this Garden Expo Plants link.

posted August 22, 2008

On Aug.19, the public visited the Guelph Trial Garden. Approximately 200 visitors spent time viewing the trials and taking part in the speaker program and workshops. Those visiting the garden had the opportunity to vote on their favourite plants in the garden. The following is a list of the top 10 public choices for that day.Zinnia 'Uproar Rose'
Digitalis 'Camelot Lavender'
Rudbeckia 'Tiger Eye Gold'
Sedum 'Xenox'
Coleus 'Mint Mocha'
Coleus 'Henna'
Agastache 'Bronze Foliage' (this is an entry in the All-America Selections judging trial)
Verbena 'Lanai Blue'09'
Cleome 'Sparkler Lavender'
Zinnia 'Swizzle Scarlet and Yellow'



Southern Ontario has experienced record levels of rainfall and as result the grass is very green and weed pressure in the flower beds is ever present. It is a good season to see what flowers stand up well to rainfall. Petunia flowers have traditionally fared poorly under pounding rain. Those petunia and calibrachoa cultivars that recover flower form quickly after a rain do stand out.
Sunflowers in the field-grown cutflower trial are in full bloom
Asiatic and LA hybrid lilies in the lily perennialization trial have established well in their second season of growth and are in peak bloom this week. The orientals are at the puffy bud stage.





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