The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to figure out when it's possible to plant field peas by referring to the USDA zone info for Santa Rosa.

Planting Calendar for Field Peas

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

You can plant field peas a little bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant field peas in Santa Rosa 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 field peas and expect a good harvest is probably October. If you wait any later than that and your field peas may not have a chance to fully mature. Starting your field peas indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Santa Rosa. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Santa Rosa is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Santa Rosa you get surprised by a frost after February 15 so just be sure to be ready to cover your field peas if you have one of those late frosts.

USDA Zone Info for Santa Rosa

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 Santa Rosa

You may be interested in your other planting guides for Santa Rosa.