Portola's Hardiness Zone
Our records indicate the United States Department of Agriculture has given Portola a growing zone designation of 6b. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Portola's climate. If you are looking for plants suitable for growing in the Portola area, head on over to our page on plants that grow well in Portola, CA.


Brass Decorative Faucet Handle

Seed Starting Trays

Worm Composting Kit

Rustic Iron Garden Trellis

Hoeing Ain't Easy Garden Sign
Understanding your growing zone is very important because it is a measure of the lowest temperature that a plant can survive, helping you to decide what plants would grow best in your particular climate. Since Portola is in growing zone 6b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Portola'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.
USDA Growing Zone: 6b
Zip Codes: 96122
Longitude: -120.4733
Latitude: 39.8241
Lowest Avg Temperatures (F): -5 to 0

Metal Arbor Trellis

Raised Garden Bed Kit

Fiskars Garden Harvest Basket

Self Watering Plant Pots
