Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Mount Vernon you can estimate when you can plant bok choi by referring to 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 get them planted earlier than plants that are more sensitive to the cold.

The earliest that you can plant bok choi in Mount Vernon 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 few weeks earlier by starting your bok choi indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Mount Vernon. You should expect an average low temperature of -10°F in the coldest months of winter.

It's important to remember that USDA zone info for Mount Vernon is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Mount Vernon you get a frost after April 15 be ready to cover your bok choi if you have a late frost.

USDA Zone Info for Mount Vernon

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Mount Vernon

You may be interested in your other planting guides for Mount Vernon.