Early on a spring morning in Bankers Hill, the Spruce Street footbridge sways gently over its canyon as dog-walkers cross, and the gully below is a tangle of green filled nearly to the rim after the winter rains. It is one of the city's loveliest quirks: graceful old houses perched on the lips of deep little canyons, gardens tipping toward a wild edge just past the back fence. Smartscapes folds its idea into one word, and in San Diego that idea is landscaping and lawn care that knows where a yard ends and the canyon begins. The cultivated part stays neat and inviting, while the view is left to do its share. On mornings like this, with the bridge humming underfoot and sunlight pouring down into the canyon, a well-kept garden on the rim feels like a front-row seat.