Wednesday, November 12, 2008

Second Test Strip Launched

We finally have the second test strip on the roof.

(Planted November 7)

This strip has deeper media (8”), and is planted with a Muhly Grass, Cordgrass and Equisetum, all native plants. We chose these plants because they are native and can take both drought and inundation in water. According to other studies that we’ve looked at, you need at least 6” of planting media for grasses. The Key West green roof only had 4” of media and this may have been part of the problem (See Key West Brown Roof). My hypothesis is that the grasses will do well but that the strip will become root bound quickly in the 15” x 30” planter, and that larger planting areas are required for grasses. We’ll report on this strip monthly with the original strip.

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