The USDA Zone info is a great tool for gardeners to help us estimate 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.

A common way of determining when you can plant chives is to check out the USDA zone info for San Carlos.

Planting Calendar for Chives

Frost tolerance for chives:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Chives do ok in pretty solid cold which tells us that you can plant them a lot earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant chives in San Carlos 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 chives and expect a good harvest is probably October. If you wait any later than that and your chives may not have a chance to really do well. Starting your chives indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in San Carlos. In the coldest months of winter you should expect an average low temperature of 30°F.

Since the USDA zone info for San Carlos is not always accurate the actual date of last frost is different every year. Half of the time in San Carlos you get surprised by a frost after January 31 so make sure that you are prepared to cover your chives if you have a surprise late frost.

USDA Zone Info for San Carlos

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 San Carlos

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