In an urban environment of concrete, asphalt, traffic, and telephone wires, it would seem that a lush tree sprouting from the sidewalk could only enrich the atmosphere and promote vitality and life.

But since 2005, when the mayor's office launched its Trees for Tomorrow tree-planting campaign, officials say a chorus of objections has emanated from the western side of the city — especially the Outer Sunset. One of the primary reasons, they say, is feng shui, the popular belief system of traditional Chinese culture that asserts strict guidelines for interior and exterior decorating — and for sidewalk tree placement.

Trees for Tomorrow has vowed to plant at least 5,000 trees every year for approximately five years. The incoming saplings are forecast to run the lengths of Judah and Irving streets. read more