One of the best tools that you have as gardeners to help us figure out 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.

In Cupertino you can estimate when it's the best time to plant gherkins by reviewing the USDA zone info.

Planting Calendar for Gherkins

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

You can not plant gherkins until after the last frost because they are not cold tolerant.

The earliest that you can plant gherkins in Cupertino 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 grow to maturity. Starting your gherkins indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Cupertino. You should expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Cupertino may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Cupertino it frosts late in the year after February 15 so make sure that you are prepared to cover your gherkins if you have a late frost.

USDA Zone Info for Cupertino

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 Cupertino

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