Wild Flower Watch

White Trillium
(Trillium grandiflorum)
[TRIL-ee-um   gran-dih-FLOR-um]

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Last Update July 17, 2016

Period of July 12 - 16, 2016

Places of Observation:
  RBG Rose Garden,  Hendrie Valley, Arboretum,
Hamilton Waterfront Trail & a property just west of Hamilton



                         The excitement of the week was the RBG staff first finding a patch of Giant Hogweed and then saving one specimin for the Herbarium. Given the extreme sensitivity of some people, the process of saving was done very carefully. As you may, or may not know, the sap of the plant can cause extreme burns that will persist for many months everytime the sun hits the same spots that the sap has affected. Although there has been a lot of attection to this plant in the media and many people think they have seen it, it is still rare in the area. I had only seen it one time in all of my years of plant watching. Like a variety of other plants, including Poison Sumac, it tends to grow in wet areas where most people do not walk. As it looks a lot like Cow Parsnip many people think they have seen Hogweed when it is the more innocent Cow Parsnip. The Giant Hogweed, as suggested by its name is a giant that can grow up to over 5 metres tall and the leaves too are huge.
                          One hundred forty-nine wild flowers were found in bloom during the past week.

 Wild, Naturalized and Cultivated Flowers Blooming
(N = New for the season)



MONDAY Wild Flower Walks

Monday, July 25 Upper Dundas Valley from Powerline Road
Monday, August 1 Hamilton-Brantford Rail Trail near Hwy 52

Also, Dean walks every Friday afternoon on RBG grounds and/or the Hamilton Waterfront Trail.
Contact him at least 24 hours in advance for meeting points and times.

Contact Dean at address below for more details if needed.

Photos from Fleur-Ange


Some other Photos from Fleur-Ange

Photos From 2007

Photos from 2006



Photos and Notes from Ron Hepworth


		Ron passed away on Tuesday, September 4th, 2012. Because he kept records of
early and peak blooming times for nearly 30 years and then passed along his summaries
to me for this site, I plan on leaving his last summary here. Below is a small sample of
what the whole summary looks like:
(observed at Brantford, Ont.) FF = First Flower/Pollen
43.10'N--80.12'W PB = Peak/Mid Bloom Date
( )= Interpolated Date
E = Estimated Date

YRS 2010 MEAN 2010 MEAN IN
willow buds (sprout/green) 15 Mar 9 Mar 15 Mar 17 Mar 27 -8.0
(Salix alba vitellina) Euro. hazelnut (FF/Pollen) 13 Mar 19 Mar 21 Mar 21 Mar 30 -5.5
(Corylus avellana) skunk cabbage (pollen/PB) 13(Mar 18)Mar 25(Mar 31)Apr 2 -4.5
(Symplocarpus foetidus)

The link for the rest of the records is below:

Ron's 2010 Summary


Index & Home of the Wild Flower Page

Hamilton Naturalists' Homepage

Other Wildflower and Botany Links


This website is hosted by Wildwood Canada

Thanks  Walter!