Anyone who has stepped onto a sun-baked patio in the San Fernando Valley, Sacramento, or the Inland Empire in July knows the feeling well. The pavement radiates heat, the air shimmers, and any patch ...

Canopy trees form the tallest layers in a forest or woodland, and are usually at least 30 feet tall, hanging over understory trees, shrubs, and herbaceous perennials. If your yard or garden is lacking ...