One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

By referring to the USDA zone info for Evanston you should be able to estimate when it's the best time to 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.

Chinese celery do ok in moderate cold which tells us that you can plant them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant chinese celery in Evanston is March. However, you really should wait until April 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. If you wait any later than that and your chinese celery may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your chinese celery indoors.

Last Frost Date

In Evanston the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -20°F.

Since the USDA zone info for Evanston 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 Evanston it frosts late in the year after April 15 be ready to cover your chinese celery in the event of a late frost.

USDA Zone Info for Evanston

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Evanston

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