When can I plant Zucchini in Evanston, IL

The USDA Zone info is a great tool for gardeners to help us figure out our gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

By referring to the USDA zone info for Evanston it's a good idea to estimate when to plant zucchini.


Planting Calendar for Zucchini

Frost tolerance for zucchini: Not tolerant of frost.
When you should plant them: After the last frost.

Since zucchini do not do well in cold weather you have to wait until after the last frost before you can plant them.

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

The earliest that you can plant zucchini in Evanston 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 zucchini and expect a good harvest is probably August. Any later than that and your zucchini may not have a chance to really do well. You can get started a few weeks earlier by starting your zucchini indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Evanston. In the coldest months of winter we should expect an average low temperature of -15°F.

Since the USDA zone info for Evanston is not always accurate our actual date of last frost is different every year. Since half of the time in Evanston it frosts late in the year after April 15 be ready to cover your zucchini in the event of one of those late frosts.

USDA Zone Info for Evanston

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 Evanston

You may be interested in our other planting guides for Evanston.