The USDA Zone info is a great tool for gardeners to help us determine 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.

In Kewanee you can estimate when it's the best time to plant spinach by referring to the USDA zone info.

Planting Calendar for Spinach

Frost tolerance for spinach:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant spinach a little earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

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

The last month that you can plant spinach and expect a good harvest is probably September. If you wait any later than that and your spinach may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your spinach indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Kewanee is just an average and the actual date of last frost changes from year to year. Since half of the time in Kewanee you get surprised by a frost after April 15 be ready to protect your spinach if you have one of those late frosts.

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.