Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Rohnert Park it's a good idea to estimate when it's the best time to plant garlic.

Planting Calendar for Garlic

Frost tolerance for garlic:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since garlic are very cold tolerant you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant garlic in Rohnert Park is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant garlic and expect a good harvest is probably October. You probably don't want to wait any later than that or else your garlic may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your garlic indoors.

Last Frost Date

The average date of last frost is February 15 in Rohnert Park. In the coldest months of winter you should expect an average low temperature of 25°F.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Rohnert Park and it can change quite a bit from year to year. Half of the time in Rohnert Park you get surprised by a frost after February 15 so just be sure to be ready to cover your garlic in the event of a late frost.

USDA Zone Info for Rohnert Park

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Rohnert Park

You may be interested in your other planting guides for Rohnert Park.