Before planting it is a good idea to find your USDA Zone info to figure out 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.

A way of getting a good idea when it's the best time to plant celeriac is to check out the USDA zone info for Machesney Park.

Planting Calendar for Celeriac

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

Since celeriac are moderately cold tolerant you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant celeriac in Machesney Park 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. If you are starting your celeriac indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Machesney Park the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Machesney Park and it will vary from year to year. Since half of the time in Machesney Park you get surprised by a frost after April 15 be ready to cover your celeriac in the event of one of those late frosts.

USDA Zone Info for Machesney Park

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 Machesney Park

You may be interested in your other planting guides for Machesney Park.