When to Plant Basil in University Park, IL

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.

In University Park you can figure out when it's the best time to plant basil by reviewing the USDA zone info.


Planting Calendar for Basil

Frost tolerance for basil: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Since basil are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

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

The earliest that you can plant basil in University Park is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant basil and expect a good harvest is probably August. If you wait any later than that and your basil may not have a chance to fully mature. Starting your basil indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in University Park. It might get as low as 5°F during the coldest months of winter.

Keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for University Park and it will vary from year to year. Since half of the time in University Park you get surprised by a frost after April 15 be ready to protect your basil in the event of one of those late frosts.

USDA Zone Info for University Park

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low5°F
Highest Expected Low10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in University Park

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