Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Norman you can determine when it's possible to plant celery by reviewing 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.

You can plant celery a bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant celery in Norman 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 celery and expect a good harvest is probably August. You probably don't want to wait any later than that or else your celery may not have a chance to fully mature. Starting your celery indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Norman. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Norman is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Norman you get surprised by a frost after April 15 be ready to protect your celery in the event of one of those late frosts.

USDA Zone Info for Norman

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Norman

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