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

The best time to plant chives in San Bruno should be determined by looking at the USDA zone info.

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 cold weather which tells us that you can plant them a lot earlier in the year than other plants that might not handle the cold.

The earliest that you can plant chives in San Bruno 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 fully mature. You can get started a few weeks earlier by starting your chives indoors.

Last Frost Date

In San Bruno the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

It's important to remember that USDA zone info for San Bruno is not always accurate and the actual date of last frost is different every year. Half of the time in San Bruno last frost occurs after January 31 so always be ready to protect your chives in the event of a late frost.

USDA Zone Info for San Bruno

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 Bruno

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