One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant winter savory in Petaluma should be estimated by looking at the USDA zone info.

Planting Calendar for Winter Savory

Frost tolerance for winter savory:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Winter Savory are one of those plants that can tolerate a little bit of cold weather which means that you can plant them a little bit earlier than more sensitive plants.

The earliest that you can plant winter savory in Petaluma 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 winter savory and expect a good harvest is probably October. Any later than that and your winter savory may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your winter savory indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Petaluma. You can expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Petaluma is just an average and the actual date of last frost changes from year to year. Since half of the time in Petaluma you get a frost after February 15 be ready to protect your winter savory if you have a surprise late frost.

USDA Zone Info for Petaluma

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 Petaluma

You may be interested in your other planting guides for Petaluma.