One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant mustard in Kewanee should be estimated by using the USDA zone info.

Planting Calendar for Mustard

Frost tolerance for mustard:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Mustard are not cold tolerant which means that it's important to wait until it warms up after the last frost has passed before you can plant them.

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

Last Frost Date

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

Remember that USDA zone info for Kewanee is just an average and the actual date of last frost will vary from year to year. Half of the time in Kewanee you get a frost after April 15 so always be ready to cover your mustard in the event of a late frost.

USDA Zone Info for Kewanee

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 Kewanee

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