One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of figuring out when to plant celeriac is to use the USDA zone info for Jasper.

Planting Calendar for Celeriac

Frost tolerance for celeriac:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant celeriac a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant celeriac in Jasper 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 celeriac and expect a good harvest is probably September. If you wait any later than that and your celeriac may not have a chance to grow to maturity. Starting your celeriac indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Jasper. You should expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Jasper may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Jasper you get a frost after March 15 so be sure to be ready to protect your celeriac if you have one of those late frosts.

USDA Zone Info for Jasper

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Jasper

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