usda growing zones california

Of 24 climate zones defined in the Sunset Western Garden Book and the 20 zones defined by the United States Department of Agriculture (USDA), California has 20 and 16, respectively. The USDA plant hardiness map divides North America into 11 hardiness zones.

What is the growing zone for California?

Because the state is so large, it is actually further broken down into Northern and Southern planting zones. A northern half of a California planting zone can be anywhere from 5a to 10b. The southern region has zones 5a to 11a. Planting zones help determine when and what to plant throughout the year.

Where is zone 9b in California?

List of 1990 Hardiness Zones for Cities in California

Location	Hardiness Zone
Aptos	Zone 9b: 25°F to 30°F
Aptos Hills-Larkin Valley	Zone 9b: 25°F to 30°F
Arbuckle	Zone 9b: 25°F to 30°F
Arcadia	Zone 10a: 30°F to 35°F

What planting zone is LA?

Los Angeles, California is in USDA Hardiness Zones 9a, 9b, 10a, 10b and 11a.

What are the climate zones in California?

Your Climate Zone

CA Zone 1: Cold Mountain Areas.
CA Zone 2: Cold Winters, Northern or Wetter.
CA Zone 3: Northern Inland, More Extreme.
CA Zone 4: Northern Inland, Less Extreme.
CA Zone 5: Northern Strong Coastal Influence.
CA Zone 6: Northern Coastal.
CA Zone 7: Northern Mild Summers, Wet Winters.

What can I plant in Zone 9b?

Zone 9 Planting Guide

Beets.
Carrots.
Cauliflower.
Collards.
Cucumbers.
Eggplant.
Endive.
Kale.

What zone is Bay Area?

Although the Bay Area broadly falls under zone 10a and 10b of the USDA Plant Hardiness Zone Map, the localized weather pattern and microclimates differ widely across this region. Based on your location, you will know whether you fall under 'foggy' or 'sunny' conditions.

What is the difference between zone 9a and 9b?

Plants in zone 9a will tolerate minimum temperatures of no lower than 20 to 25 degrees Fahrenheit. In 9b, the lowest temperature for flowers or plants should be 25 to 30 degrees Fahrenheit. Zone 9 occupies most of the lower states including California, Arizona, Texas, and Florida, to name a few.

What is Zone 9b?

Subset Zone Temperatures

The Zone 9 subsets are Zone 9a and Zone 9b. ... That means the temperature ranges for Zone 9 are: Zone 9: The minimum average temperature range is 20°F to 30°F. Zone 9a: The minimum average temperature range is 20°F to 25° F. Zone 9b: The minimum average temperature range is 25°F to 30°F.

What can I plant now in Northern California?

Plant bare root artichokes, asparagus, blackberries, grapes, raspberries, rhubarb and strawberries. Start seeds (indoors) of cool season leafy vegetables (lettuce, Swiss chard, spinach, etc), Brassica family crops (broccoli, spring cabbage, cauliflower, etc.) and leeks. and hydrangeas.

What can I plant in zone 10b?

Harvest arugula, lettuce, squash, pumpkins. November- Plant beets (jan), lettuce (dec), beans (dec), radish (dec), carrots (jan), tomatoes (feb), cucumbers (feb), lettuce (jan), kale/arugula (jan). Harvest peppers, radishes, beans, kale, carrots, basil, lettuce.

Where is Zone 7 in the United States?

For example, in North Carolina, the mountain region is 7a while the Piedmont region is 7b. The state's coastal region has both 8a and 8b areas. There are zone 7 areas in 28 states.
...
Zone 7 States.

Alabama	Nevada
Connecticut	Oregon
Delaware	Pennsylvania
Georgia	Rhode Island
Idaho	South Carolina

How do you determine your climate zone?

Climate zones are determined by the coldest average winter temperature the geographical area typically experiences. You can see the coldest temps and their zones here, further divided into A (colder half of the zone) and B (warmer half of the zone).

What is the largest region in California?

The Mountain Region

Create a Visme. The Mountain Region covers more than half of California's area, and it is the largest region in California. The biggest mountain range in the state is the Sierra Nevada which runs north and south along the eastern side of the state.

Why is La hotter than San Diego?

San Diego and San Francisco were both built on the coast, and that is where their weather stations are. However, LA was established a few miles further inland, so it is warmer there. The reason it is cooler by the coast is that there is a cold water current from Alaska that makes the water and nearby air cool.

Why does California have so many different climates?

California's climate varies widely from hot desert to alpine tundra, depending on latitude, elevation, and proximity to the coast. California's coastal regions, the Sierra Nevada foothills, and much of the Central Valley have a Mediterranean climate, with warmer, drier weather in summer and cooler, wetter weather in ...

When can I plant in Zone 9b?

As a general rule, most vegetables should be started indoors 6-8 weeks before your last frost date. In zone 9b, this would be around January 1st – January 18th. Or if you're directing seeding vegetables into the garden, most seeds should be sown after your last frost date.

What fruit trees grow well in Zone 9b?

Zone 9 Fruit Tree Varieties

Owardi satsuma mandarin orange (Citrus reticulata 'Owari')
Calamondin (Citrus mitis)
Meyer lemon (Citrus x meyeri)
Marumi kumquat (Citrus japonica 'Marumi')
Trifoliate orange (Citrus trifoliata)
Giant pummelo (Citrus pummel)
Sweet Clementine (Citrus reticulata 'Clementine')

What can I plant in December in Zone 9?

Zone 9 vegetables for the winter garden that are frost tolerant include:

Beets.
Broccoli.
Brussels sprouts.
Cabbage.
Carrots.
Cauliflower.
Chard.
Collards.

What can I grow right now in California?

Plants in this group include root crops such as: beets, carrots, parsnip, radish and turnips; stems such as asparagus and white potato; leafy crops such as cabbage, celery, lettuce, onion, and spinach and plants whose immature flower parts we eat, such as broccoli, cauliflower, and globe artichokes.

When can I plant in Zone 10?

Zones 10 has a long growing window for gardening. With a last frost date of January 30th or earlier and first frost date as late as November 30th to December 30th.

What can I plant in December in Northern California?

I recommend planting one bed in root crops (carrots, beets, and onions), another in cole crops (broccoli, cabbage, cauliflower, Brussels sprouts, and bok choy), and another in salad greens (lettuces, mesclun, spinach, and chard).