One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Rosemead you can determine when it's the best time to plant gherkins by checking out the USDA zone info.

Planting Calendar for Gherkins

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

Gherkins do not do well in cold weather which means 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 Rosemead is February. However, you really should wait until March 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. If you wait 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 January 31 in Rosemead. In the coldest months of winter you should expect an average low temperature of 30°F.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Rosemead and it is different every year. Half of the time in Rosemead last frost occurs after January 31 so always be ready to protect your gherkins if you have a late frost.

USDA Zone Info for Rosemead

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Rosemead

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