Climate/Weather
The Bay Area’s weather is similar to the semi-arid Mediterranean climate. Plants having deep root systems and/or leaves that retain water thrive here. Generally, once established, Mediterranean-type plants survive with little water and low humidity. The Plant List contains a majority of California native, or Mediterranean type plants. (To access the Plant List, return to the Main Menu.)
The following are useful weather facts and tips:
• | Cold air, like water, runs down hill (slope) to the lowest point and can be trapped by fences, walls, or structures, causing frost damage to plants. |
• | South-facing walls and patios absorb heat during the day and radiate the heat at night, warming nearby plants. |
• | Provide shade for west-facing windows with deciduous trees or trellises. A mature tree can reduce summer air-conditioning costs up to 40 percent. |
• | Paved areas and air conditioners should be shaded to provide further energy savings. |
• | A cold, dry, wind can damage unprotected plants causing stunted or slow growth. Create sheltered garden areas for protection regardless of wind direction. |
Weather/climate terms:
• | Aspect: the direction a garden faces (north, south, east, or west). |
• | Exposure: the direction of a garden with respect to weather. For example, the garden has a northern exposure if it is exposed to cold north wind with occasional frost. |
• | Microclimate: a small area with uniform climate located within a larger area. Hills, hollows, and structures can create microclimates. |
See Sunset publication Smart Water and Energy Use in the West http://www.sunset.com/sunset/marketplace/article/0,20633,734248~894403~880159,00.html.
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