One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant bok choi in Peoria should be estimated by looking at the USDA zone info.

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 are moderately cold tolerant which tells us that you can plant them earlier than more sensitive plants.

The earliest that you can plant bok choi in Peoria 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. Any later than that and your bok choi may not have a chance to really do well. You can get started a little bit earlier by starting your bok choi indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Peoria. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Peoria is an average and the actual date of last frost changes from year to year. Since half of the time in Peoria it frosts late in the year after February 15 be ready to protect your bok choi in the event of a surprise late frost.

USDA Zone Info for Peoria

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 Peoria

You may be interested in your other planting guides for Peoria.