One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Sullivan City you can figure out when it's the best time to plant celery by referring to the USDA zone info.

Planting Calendar for Celery

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

Celery do ok in some cold which means that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant celery in Sullivan City 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 celery and expect a good harvest is probably September. You probably don't want to wait any later than that or else your celery may not have a chance to grow to maturity. If you are starting your celery indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Sullivan City. You should expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Sullivan City is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Sullivan City last frost occurs after February 15 be ready to cover your celery in the event of a late frost.

USDA Zone Info for Sullivan City

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 Sullivan City

You may be interested in your other planting guides for Sullivan City.