One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

It's possible to estimate when it's possible to plant celery by checking out the USDA zone info for Mount Prospect.

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 well in a tiny bit of cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant celery in Mount Prospect 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. Any later than that and 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 Mount Prospect. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Mount Prospect is not always accurate the actual date of last frost is different every year. Half of the time in Mount Prospect it frosts late in the year after April 15 so make sure that you are prepared to protect your celery if you have a surprise late frost.

USDA Zone Info for Mount Prospect

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Mount Prospect

You may be interested in your other planting guides for Mount Prospect.