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

By looking at the USDA zone info for San Dimas it's a good idea to figure out when you can plant chives.

Planting Calendar for Chives

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

Chives are one of those plants that can tolerate quite a bit of cold weather which tells us that you can get them planted much earlier than other plants that might not handle the cold.

The earliest that you can plant chives in San Dimas 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. 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

In San Dimas the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for San Dimas is an average and the actual date of last frost will vary from year to year. Half of the time in San Dimas you get a frost after January 31 so make sure that you are prepared to protect your chives in the event of a surprise late frost.

USDA Zone Info for San Dimas

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 Dimas

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