With help from the City of Portland and the non-profit EcoRoofs Everywhere, the Oregon Garden built its first green-roof on June 12, 2004. Housed on a filter pump station that is set into the side of a hill, the roof allows Garden visitors an up close look at the construction and plants on the roof. The roof is divided into several plots with different growing media, which is one of the critical factors in green-roof success, according to the latest research. Construction details, plant lists, and the recipes for growing media are available.

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EcoRoof Sign