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

You should be able to determine when to plant nasturtium by looking at the USDA zone info for Kankakee.

Planting Calendar for Nasturtium

Frost tolerance for nasturtium:	Not tolerant of frost.
When to plant:	After the last frost.

Nasturtium require warm weather which means that you have to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant nasturtium in Kankakee 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 nasturtium and expect a good harvest is probably August. Any later than that and your nasturtium may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your nasturtium indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Kankakee. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Kankakee is an average and the actual date of last frost is different every year. Since half of the time in Kankakee you get surprised by a frost after April 15 be ready to protect your nasturtium if you have a surprise 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.