The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Worthington it's possible to determine when to plant turnips.

Planting Calendar for Turnips

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

It's probably not a good idea to plant turnips until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant turnips in Worthington is May. However, you really should wait until June if you don't want to take any chances.

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

Last Frost Date

On average the last frost has passed is on May 15 in Worthington. In the coldest months of winter you should expect an average low temperature of -25°F.

Remember that USDA zone info for Worthington may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Worthington it frosts late in the year after May 15 be ready to protect your turnips in the event of a surprise late frost.

USDA Zone Info for Worthington

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Worthington

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