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.

The first opportunity to plant poppies in Sonoma should be estimated by reviewing the USDA zone info.

Planting Calendar for Poppies

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

Poppies tend to make it in moderate cold which means that you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant poppies in Sonoma 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 poppies and expect a good harvest is probably October. Any later than that and your poppies may not have a chance to really do well. You can get started a few weeks earlier by starting your poppies indoors.

Last Frost Date

On average the last frost is on February 15 in Sonoma. In the coldest months of winter you should expect an average low temperature of 25°F.

It's important to remember that USDA zone info for Sonoma is not always accurate and the actual date of last frost changes from year to year. Half of the time in Sonoma you get a frost after February 15 so always be ready to protect your poppies if you have one of those late frosts.

USDA Zone Info for Sonoma

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 Sonoma

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