One of the best tools that you have as gardeners to help us figure out 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.

The first chance to plant bok choi in Hanover Park can be determined by reviewing 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 means that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant bok choi in Hanover Park is February. However, you really should wait until March 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 September. If you wait any later than that and your bok choi may not have a chance to really do well. You can get started a couple of weeks earlier by starting your bok choi indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Hanover Park. You should expect an average low temperature of -15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Hanover Park is just an average and the actual date of last frost changes from year to year. Half of the time in Hanover Park you get surprised by a frost after April 15 so just be sure to be ready to protect your bok choi in the event of a late frost.

USDA Zone Info for Hanover Park

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Hanover Park

You may be interested in your other planting guides for Hanover Park.