When to Plant Bok Choi in Union Grove, WI

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.

You can estimate when you can plant bok choi in Union Grove by using 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.

You can plant bok choi a little bit earlier in the year because they do well in moderate cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant bok choi
Possibly ok, but a risky time to plant bok choi
Probably not a good time to plant bok choi

The earliest that you can plant bok choi in Union Grove 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. You probably don't want to wait any later than that or else your bok choi may not have a chance to really do well. If you are starting your bok choi indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

Since the USDA zone info for Union Grove is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Union Grove it frosts late in the year after April 15 be ready to protect your bok choi if you have one of those late frosts.

USDA Zone Info for Union Grove

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 Union Grove

You may be interested in your other planting guides for Union Grove.