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.

The USDA zone info for American Canyon should be read to figure out when you can plant chinese chives.

Planting Calendar for Chinese chives

Frost tolerance for chinese chives:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Chinese chives do well in moderate cold which means that you can plant them a little bit earlier than other plants that might not handle the cold.

The earliest that you can plant chinese chives in American Canyon 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 chinese chives and expect a good harvest is probably October. Any later than that and your chinese chives may not have a chance to fully mature. Starting your chinese chives indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for American Canyon is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in American Canyon you get surprised by a frost after February 15 so just be sure to be ready to protect your chinese chives if you have a surprise late frost.

USDA Zone Info for American Canyon

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 American Canyon

You may be interested in your other planting guides for American Canyon.