Ontario Horticultural Association

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.

Ontario Horticultural Association

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.