The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Sonoma can be reffered to in order to determine when it's the best time to plant gherkins.

Planting Calendar for Gherkins

Frost tolerance for gherkins:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Gherkins require warm weather which tells us that it is necessary to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant gherkins in Sonoma is March. However, you really should wait until April if you don't want to take any chances.

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

Last Frost Date

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

It's important to remember that USDA zone info for Sonoma is not always accurate and the actual date of last frost is different every year. Half of the time in Sonoma it frosts late in the year after February 15 so be sure to be ready to cover your gherkins 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.