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| |
What to Plant,
Where to Plant and When to Plant it!
|
Minnie
Mouse loves to garden... |
while
Pluto digs the holes. (Unfortunately,
wherever he wants!) |
Attention Gardeners:
We've put together a Fruit and Vegetable Planting
Guide
for the Bay Area, California.
You may now Download
our Fruit & Vegetable Planting Guide:
Fruit and Vegetable
Planting Guide.pdf
|
Do you know your Sunset
Climate Zone? We have
the information you need.
|
Sunset Climate
Zones for the San Francisco Bay Area:
|
According to the Sunset Western Garden
Book, The SF Bay Area is comprised of 4 Climate Zones: 14, 15,
16,17, as described below. This important Bay Area climate
information is not proved anywhere in detail online. We have included the
Sunset Climate Zone information from both the Western Garden Book and
Sunset's Website as the following downloads:
BOOK:
Sunset San Francisco Bay Area Climate Zones.pdf
WEBSITE:
Sunset Climate Zones - California and Nevada.pdf |
|
Zone
14
|
 |
Marine air moderates
parts of Zone 14 that otherwise would be colder in winter and hotter in
summer. The opening in Northern California's Coast Ranges created
by San Francisco and San Pablo Bays allows marine air to spill much
farther inland. The same thing happens, but the penetration is not
as deep, in the Salinas Valley. Zone 14 includes the cold-winter
valley floors, canyons, and land troughs in the Coast Ranges from Santa
Barbara County to Humbolt County.
The milder-winter, marine-influenced areas in Zone 14 and
the cold-winter inland valleys within Zone 14 differ in humidity.
For example, lowland parts of Contra Costa County are more humid than
Sacramento.
Fruits that need winter chill do
well here, as do shrubs needing summer heat (Oleander, Gardenia).
Over a 20-year period, the area had lows ranging from 26 degrees to 16 degrees F
(-3 to -9 degrees C). Weather records all-time lows from 20
degrees down to 11 degrees F (-7 to -12 degrees C). |
|
Zone
15
|
 |
Zones 15 and 16 are
areas of Central and Northern California that are influenced by marine
air approximately 85 percent of the time and by inland air 15 percent of
the time. Also worthy of note is that although Zone 16 is within
the Northern California coastal climate area, its winters are milder
because the areas in this zone are in thermal belts. The
cold-weather areas that make up Zone 15 lie in cold-air basins, on
hilltops above the thermal belts, or far enough north that plant
performance dictates a Zone 15 designation.
Many plants that are recommended for
Zone 15 are not suggested for Zone 14 mainly because they must have a
moister atmosphere, cooler summers, milder winters, or all three
conditions present at the same time. On the other hand, Zone 15
still receives enough winter chilling to favor some of the cold-winter
specialties, such as English Bluebells, which are not recommended for
Zones 16 and 17.
Most of this zone gets a nagging
afternoon wind in summer. Trees and dense shrubs planted on the
windward side of a garden can disperse it, and a neighborhood full of
trees can successfully keep it above the rooftops. Lows over a
20-year period ranged from 28 degrees to 21 degrees F (-2 to -6 degrees
C), and record lows from 26 degrees to 16 degrees f (-3 to -9 degrees
C). |
|
Zone
16 |
 |
This benign climate
exists in patches and strips along the Coast Ranges from western Santa
Barbara County north to northern Marin County. It's one of
Northern California's finest horticultural climates. It consists
of thermal belts (slopes from which cold air drains) in the coastal
climate area, which is dominated by ocean weather about 85 percent of
the time and inland weather about 15 percent.
A summer afternoon wind is an integral
part of this climate. Plant trees and shrubs on the windward side
of your garden to help disperse it.
Typical lows in Zone 16 over a
20-year period ranged from 32 degrees to 19 degrees F (0 to -7 degrees
C). The lowest recorded temperatures range from 25 degrees to 18
degrees F (-4 to -8 degrees C). This zone gets more heat in summer
than Zone 17, which is dominated by maritime air, and has warmer winters
than Zone 15. That's a happy combination for gardening. |
|
Zone
17 |
 |
The climate in this
zone features mild, wet, almost frostless winters and cool summers with
frequent fog or wind. On most days and in most places, the fog
tends to come in high and fast, creating a cooling and humidifying
blanket between sun and the earth, reducing the intensity of light and
sunshine. Some heat-loving plants (Citrus, Hibiscus, Gardenia) do
not get enough heat to fruit or flower reliably.
In a 20-year period, the lowest winter
temperatures in Zone 17 ranged from 36 degrees to 23 degrees F (2 to -5
degrees C). The lowest temperatures on record ranged from 30
degrees to 20 degrees F (-1 to -7 degrees C). Of further interest
in the heat-starved climate are the highs of the summer, normally in the
60 degree to 75 degree F916 to 24 degrees C) range. The average
highest temperature in Zone 17 is only 97 degrees F (36 degrees C).
In all the other adjacent climate zones, average highest temperatures
are in the 104 degrees to 116 degrees F ( 40 to 47 degrees C) range. |
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