One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of figuring out when it's a good idea to plant bok choi is to examine the USDA zone info for Pico Rivera.

Planting Calendar for Bok Choi

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

Bok Choi can survive in mild cold which tells us that you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant bok choi in Pico Rivera 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 bok choi and expect a good harvest is probably October. If you wait any later than that and your bok choi may not have a chance to grow to maturity. If you are starting your bok choi indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on January 31 in Pico Rivera. You should expect an average low temperature of 35°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Pico Rivera may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Pico Rivera it frosts late in the year after January 31 so always be ready to cover your bok choi in the event of one of those late frosts.

USDA Zone Info for Pico Rivera

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Pico Rivera

You may be interested in your other planting guides for Pico Rivera.