Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In San Ramon you can determine when it's a good idea to plant gherkins by using 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 should not plant gherkins until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant gherkins in San Ramon 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. Any later than that and your gherkins may not have a chance to fully mature. You can get started a few weeks earlier by starting your gherkins indoors.

Last Frost Date

The average date of last frost is February 15 in San Ramon. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for San Ramon is just an average the actual date of last frost changes from year to year. Half of the time in San Ramon it frosts late in the year after February 15 so always be ready to cover your gherkins in the event of one of those late frosts.

USDA Zone Info for San Ramon

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 San Ramon

You may be interested in your other planting guides for San Ramon.