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.

The earliest that you can plant carrots in Willowbrook should be determined by checking out the USDA zone info.

Planting Calendar for Carrots

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

You can plant carrots a little bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant carrots in Willowbrook 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 carrots and expect a good harvest is probably September. If you wait any later than that and your carrots may not have a chance to really do well. If you are starting your carrots indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Willowbrook is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Willowbrook you get surprised by a frost after April 15 so make sure that you are ready to cover your carrots if you have a late frost.

USDA Zone Info for Willowbrook

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 Willowbrook

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