The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant celeriac in Grand Rapids should be figured out by looking at the USDA zone info.

Planting Calendar for Celeriac

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

Celeriac do ok in a little bit of cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant celeriac in Grand Rapids 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 celeriac and expect a good harvest is probably August. Any later than that and your celeriac may not have a chance to really do well. You can get started a little bit earlier by starting your celeriac indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Grand Rapids. It might get as low as -35°F during the coldest months of winter.

Since the USDA zone info for Grand Rapids is not always accurate the actual date of last frost will vary from year to year. Half of the time in Grand Rapids there is a last frost after May 15 so always be ready to protect your celeriac in the event of one of those late frosts.

USDA Zone Info for Grand Rapids

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Grand Rapids

You may be interested in your other planting guides for Grand Rapids.