Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. horticultural organization in Ontario, Canada. It was established in 1906 by the Government of Ontario, via an Act in the Ontario Legislature, which split the Agricultural and Horticultural Societies into the Ontario Agricultural Fairs Association and the OHA. The OHA consists of 19 Districts and 277 autonomous local societies; its executive council has representatives from each district. As of 2009, the OHA counts over 30,000 members.

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