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.

The USDA zone info for Irmo can be used to determine when it's possible 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 means that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant chinese celery in Irmo 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. You probably don't want to wait any later than that or else your chinese celery may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your chinese celery indoors.

Last Frost Date

On average the last frost is on March 15 in Irmo. You should expect an average low temperature of 10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Irmo is just an average and the actual date of last frost will vary from year to year. Half of the time in Irmo you get a frost after March 15 so be sure to be ready to cover your chinese celery in the event of a surprise late frost.

USDA Zone Info for Irmo

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Irmo

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