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.

It's possible to determine when it's possible to plant datura by using the USDA zone info for Kankakee.

Planting Calendar for Datura

Frost tolerance for datura:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant datura slightly earlier in the year because they are barely cold tolerant.

The earliest that you can plant datura in Kankakee is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant datura and expect a good harvest is probably August. If you wait any later than that and your datura may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your datura indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Kankakee may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Kankakee it frosts late in the year after April 15 so always be ready to protect your datura in the event of a late frost.

USDA Zone Info for Kankakee

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 Kankakee

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