When to Plant Eggplants in Plainfield, IL

The USDA Zone info is a great tool for gardeners to help us figure out 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 eggplants in Plainfield can be determined by checking out the USDA zone info.


Planting Calendar for Eggplants

Frost tolerance for eggplants: Not tolerant of frost.
When to plant: After the last frost has passed.

It's probably not a good idea to plant eggplants until after the last frost when the weather gets warmer because they require warm weather.

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

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

Last Frost Date

The average date of last frost is April 15 in Plainfield. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Plainfield is an average the actual date of last frost will vary from year to year. Half of the time in Plainfield it frosts late in the year after April 15 so be sure to be ready to protect your eggplants if you have a late frost.

USDA Zone Info for Plainfield

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 Plainfield

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