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The performance of 37 species under real-life green roof conditions was assessed by researchers in Ontario and Nova Scotia. Species invasiveness and winter survivability has also been evaluated. Positive results across many test species is providing green roof designers with a larger palette of green roof materials, in particular, a number of low maintenance plant species that perform well under harsh conditions.
A study of 20 native species planted for evaluation at three locations in Ontario and Newfoundland. In each location plant performance was evaluated in sun and shade, in different growth media and with different watering regimes. This study has identified several new or underused native Canadian plants which have proven potential as low maintenance ornamental plants.
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