[PCA] WEB: Zone 5 Green Roof Species Study by Chicago Botanic Garden

[Kwong, Olivia]

http://www.chicagobotanic.org/downloads/planteval_notes/no38_greenroofplants.pdf

"The Chicago Botanic Garden (USDA Hardiness Zone 5b, AHS Plant Heat Zone 5)
planted 156 taxa of herbaceous and woody taxa on the green roof in 2009,
and an additional 60 taxa in 2011. The trial included both native North
American taxa and non-native species and cultivars. Initially, the proposed
plant list was informed by regional research on green roof plants
undertaken at Michigan State University, East Lansing, Michigan; Intrinsic
Landscaping, Glenview, Illinois; and Midwest Groundcovers, St. Charles,
Illinois. The evaluation taxa were selected for their potential to succeed
in the temperature and moisture extremes typical on a green roof. While
some taxa
had been grown on green roofs in other regions, a portion of the taxa were
new or uncommon on green roofs. The goal of the trial was to develop a
diverse list of recommended plants for use on green roofs."

See the link above for the Plant Evaluations Notes PDF with the full text
and details.
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