The Urquhart Butterfly Garden is located in Hamilton, Ontario, in the former town of Dundas. It occupies the eastern edge of Centennial Park, at the corner of Cootes Dr and East St North, on the banks of the Desjardin Canal. Access to the garden by vehicle is from King St East, with parking available in the gravel lot adjacent to the Hamilton Airforce Club, at 128 King St E, L9H 1C5.
The Garden is open dawn to dusk, 7 days per week. Admission and Parking are Free.
For drivers, from the Main West exit from Highway 403, turn left (west) on to Main St W, and proceed to Cootes Dr, just past McMaster University. Turn right (north) on to Cootes Dr and continue to East St N, which is the third intersection. Turn right on to East St then right again on to King St E to find the parking lot on your right hand side. Or if you’re coming along Highway 8 from west of Dundas, follow 8 down the escarpment into Dundas. Continue through downtown Dundas on King St. until you reach the stoplight just past the Canadian Tire store. Turn left at the light onto East St. North then take the first right, onto King St. East.
For cyclists, Cootes Dr has a separated bike path linking McMaster to the garden.
By public transit, take the 5 DELAWARE bus, Head St Loop, and get off on Cootes Dr at East Ave N., then walk slightly back east to Centennial park.
Urquhart Butterfly Garden 
Posted to the dplex-l Monarch Watch discussion group by Don Davis – donald_davis@yahoo.com:
This afternoon, I drove over to Dundas, Ontario – near Hamilton, Ontario at the west end of Lake Ontario – to give a monarch presentation near the Urquhart Butterfly Garden. This garden, built to honour the Urquharts, was the result and perseverance of now 75 year old Joanna Chapman, past owner of Chapman books. I was absolutely delighted to see that the garden has matured; that selective weeding, thinning, garden care is taking place; that the garden is alive with all manner of nectar sources and food plants; lots of dense, lush vegetation in bloom; to see the new panel honoring the Urquharts. Very, very impressive indeed. And yes, we saw a couple of monarchs there. Garden consists primarily of native plants, but also a few annuals and other plants such as buddleia. Shrubs that produce fruit such as elderberry abound.
Fred and Norah Urquhart wrote to say of all the accolades and honours they had received, what they appreciated the most this lasting tribute to their work.
After giving my talk, I was delighted to meet the lady who reported the first known spring 2013 monarch sighting in Canada to Journey North!
See:
https://urquhartbutterfly.com/
Early photo: http://www.unityserve.org/butterfly/
http://www.thespec.com/news-story/2525429-hamilton-butterfly-garden-is-bracing-itself-for-a-tough-year/
http://dundasoutdoors.blogspot.ca/2012/08/urquhart-butterfly-garden-treasure-in.html
History of the project (Journey North): http://www.learner.org/jnorth/1997/jn-talk/0126.html
I attended the official opening of the garden in 1997, representing the Urquharts.
Is the Sept program on Sept 1st (Sat) or Sunday Sept 2nd – says 2nd on poster
It is on Saturday the first. Thanks!
There is an updated poster on the website if you click on education program