When to Plant Celeriac in River Grove, IL

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.

By reviewing the USDA zone info for River Grove you will be able to determine when to plant celeriac.


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 bit earlier in the year than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant celeriac
Possibly ok, but a risky time to plant celeriac
Probably not a good time to plant celeriac

The earliest that you can plant celeriac in River Grove 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 really do well. Starting your celeriac indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In River Grove the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Remember that USDA zone info for River Grove is not always accurate and the actual date of last frost is different every year. Half of the time in River Grove last frost occurs after April 15 so always be ready to cover your celeriac if you have one of those late frosts.

USDA Zone Info for River Grove

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 River Grove

You may be interested in your other planting guides for River Grove.