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Wednesday - January 14, 2009

From: Halifax, NS
Region: Canada
Topic: Green Roofs
Title: Best performing species on green roofs
Answered by: Dr. Mark Simmons and Joe Marcus


Hello, I am a graduate student in Nova Scotia Canada studying native plant communities on green roofs. I have been reading about the native planted green roof at the Lady Bird Johnson Wildflower Center and am interested to know how well the native plants performed and survived in your region of the world. Thank you, and great website!


We wish we could give you a more definitive answer, but it's still a bit too early.  Right now we are still analyzing the data. There is considerable variation both among plant types and among roof types (i.e. a plant that does well on one roof type may do poorly on another). Although there are many exceptions, overall, as a guide, the grasses seem to do the best. The list can be found at http://www.wildflower.org/collections/collection.php?collection=greenroof_species


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November 23, 2008 - We are trying to set up a green roof system on our own. What do you suggest for soil? It seems the soils are proprietary and unavailable to individuals.
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April 20, 2006 - I`m wondering if you would know what plants native to the area around Beijing China would be good candidates for extensive green roof gardens? Also, do you think that those hearty little pesky plants ...
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June 12, 2011 - Dear Mr. Smarty Plants, We have a small, homemade green roof with a 4" medium on our sunroom, which faces south, however, a portion is partially shaded a Sweet Gum tree. Native Iris cristata, phlox...
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Need Plants and Soil for a Green Roof in Buffalo, TX
September 13, 2010 - I'm building a green roof on my cabin in the Buffalo, Texas, area. Would you know what soil and plants would be best suited for that area? I have a lot of sand I could use, but didn't know if that...
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