One of the best tools that you have as gardeners to help us estimate 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.

A common way of estimating when it's a good idea to plant feverfew is to use the USDA zone info for Bolingbrook.

Planting Calendar for Feverfew

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

Feverfew are moderately cold tolerant which means that you can start planting them earlier than other frost tender plants.

The earliest that you can plant feverfew in Bolingbrook 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 feverfew and expect a good harvest is probably September. You probably don't want to wait any later than that or else your feverfew may not have a chance to fully mature. You can get started a few weeks earlier by starting your feverfew indoors.

Last Frost Date

In Bolingbrook the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

It's important to remember that USDA zone info for Bolingbrook is an average and the actual date of last frost is different every year. Since half of the time in Bolingbrook last frost occurs after April 15 be ready to cover your feverfew if you have one of those late frosts.

USDA Zone Info for Bolingbrook

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 Bolingbrook

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