One of the first steps you take when you are making a decision about 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 Gretna should be used to estimate when 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.

Since chinese celery are one of those plants that can tolerate a tiny bit of cold weather you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant chinese celery in Gretna 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 chinese celery and expect a good harvest is probably September. 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

On average the last frost when the weather gets warmer is on February 15 in Gretna. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Gretna may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Gretna you get a frost after February 15 so be sure to be ready to cover your chinese celery if you have a late frost.

USDA Zone Info for Gretna

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Gretna

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