Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Willmar should be reffered to in order to estimate when you can plant chinese celery.

Planting Calendar for Chinese celery

Frost tolerance for chinese celery:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since chinese celery are one of those plants that can tolerate a tiny bit of cold weather you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant chinese celery in Willmar is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant chinese celery and expect a good harvest is probably August. Any later than that and your chinese celery may not have a chance to fully mature. You can get started a little bit earlier by starting your chinese celery indoors.

Last Frost Date

On average the last frost is on May 15 in Willmar. In the coldest months of winter you should expect an average low temperature of -25°F.

Remember that USDA zone info for Willmar may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Willmar you get a frost after May 15 so make sure that you are ready to cover your chinese celery in the event of a surprise late frost.

USDA Zone Info for Willmar

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Willmar

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