What Growing Zone Is Philo?

Our records indicate the United States Department of Agriculture has given Philo a growing zone designation of 9b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Philo's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Philo's weather data from 1991 - 2020 in their analysis.

map of growing zone 9b (Northern California)map of growing zone 9bLatest CA growing zone map

If you are looking for plants suitable for growing in the Philo area, head on over to our page on plants that grow well in Philo, CA.

Rustic Iron Garden Trellis

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.
Shiitake Mushroom Kit

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.
Hydroponic Garden Grow Kit

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
Japanese Pagoda Garden Statue

Japanese Pagoda Garden Statue

Add a touch of feng shui to the garden with this popular pagoda statue.
Metal Seed Storage Box

Metal Seed Storage Box

Organized storage solution for your seed collection.

Show Philo's growing zone on my site

map of growing zone 9b (Northern California)map of growing zone 9bLatest CA growing zone map

The growing zone is a measure of the lowest temperature that a plant can survive based on average lowest year temperatures, helping you to decide what plants would grow best in your particular climate. Since Philo is in growing zone 9b this means that plants there can survive temperatures as low as 25 to 30 degrees Fahrenheit. Plants for Philo's climate should be chosen with this in mind, or plants should be moved inside to keep their core temperature in the right range if necessary.

Some zones may have been changed by the USDA as of 2023. To see if the Philo area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.

The updated map shows that over half of the Southeast has warmed by about half a zone. For gardeners, that means you can now grow plants that tolerate a bit more heat and less frost than before. The tan areas reflect this shift. Meanwhile, the white areas had slight temperature changes, but not enough to move them into a new zone. In the Western U.S., a few spots shifted cooler. That’s not due to a colder climate, but because the new map uses a larger dataset, giving a more accurate picture of local conditions. It's important to keep track of these changes when planning your garden!

Ready to start planning your garden? Browse our curated list of plants recommended for Philo, CA that are matched to this hardiness zone.

Hardiness Zone FAQ

Have questions about hardiness zones and what they mean for your garden? Check out our FAQ below for quick answers to common questions about USDA hardiness zones and how they affect plant selection in Philo, CA.

The USDA hardiness zone is 9b for Philo. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

Philo's Growing Zone Details

USDA Growing Zone: 9b

Zip Codes:
95466

Longitude: -123.445

Latitude: 39.0657

Lowest Avg Temperatures (F): 25 to 30

Bronze Girl on Tree Statue

Bronze Girl on Tree Statue

A graceful bronze art piece that brings a regal presence to your garden.
Heavy Duty Garden Utility Wagon

Heavy Duty Garden Utility Wagon

Let gardeners haul it all with this rugged utility wagon from Gorilla Carts.
Are You Pooping? Sign

Are You Pooping? Sign

Funny cow sign, great for gardeners and farmers.
Heron with Prey Bronze Statue

Heron with Prey Bronze Statue

Make a memorable impression with this striking bronze heron statue.
Japanese Pagoda Garden Statue

Japanese Pagoda Garden Statue

Add a touch of feng shui to the garden with this popular pagoda statue.

Map of the Philo Area

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Brass Decorative Faucet Handle

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.
Life Is Better w/ Chickens Sign

Life Is Better w/ Chickens Sign

A heart warming sign for the chicken lover in your life.
Women's Panama Summer Hat

Women's Panama Summer Hat

This women's Panama hat was a hit at my family Christmas last year.
Naughty Garden Gnome Statue

Naughty Garden Gnome Statue

Know someone with a naughty sense of humor? This gnome statue is sure to get some laughs.
Reusable Grow Bags

Reusable Grow Bags

Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.

Plants For Other States

Looking for the best plants in a different area of the United States? Click on a button below to find plants that are ideal for that state's temperatures.

Alaska Alabama Arkansas Arizona California Colorado Connecticut Delaware Florida Georgia Hawaii Iowa Idaho Illinois Indiana Kansas Kentucky Louisiana Massachusetts Maryland Maine Michigan Minnesota Missouri Mississippi Montana North Carolina North Dakota Nebraska New Hampshire New Jersey New Mexico Nevada New York Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Virginia Vermont Washington Wisconsin West Virginia Wyoming
Naughty Garden Gnome Statue

Naughty Garden Gnome Statue

Know someone with a naughty sense of humor? This gnome statue is sure to get some laughs.
Small Greenhouse Kit

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.
Brass Decorative Faucet Handle

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.
Seed Starting Trays

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.
Metal Arbor Trellis

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

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