CLACKAMAS, OR — Collier Arbor Care
, the firm which provides pro bono care for Vancouver''s "oldest apple tree in the Northwest" has been chosen to participate in an international pilot program testing the nation''s rating system for green landscape design, construction and maintenance, according to Lawn and Landscape.
Collier''s initial site development included replanting, the creation of a conservation corridor along the creek and installation of bio-swales to collect run-off water from parking lots and the two buildings on the property, the article stated.
Under the pilot program the firm will retrofit the property''s irrigation system, redevelop the bio-swales into a rain garden and replant the conservation easement, the article added.
The firm also will use 100 percent organic products for weed and pest control and for plant maintenance and soil health, the article noted.
According to the article, under the pilot project, Collier will be reducing landscape irrigation by 70 percent and replanting the conservation corridor with native shrubs to make it a mini-arboretum.