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.

By using the USDA zone info for New Castle it's possible to estimate when to plant turnips.

Planting Calendar for Turnips

Frost tolerance for turnips:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

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

The earliest that you can plant turnips in New Castle 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 turnips and expect a good harvest is probably August. If you wait any later than that and your turnips may not have a chance to fully mature. You can get started a little bit earlier by starting your turnips indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in New Castle. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for New Castle may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in New Castle you get surprised by a frost after April 15 so be sure to be ready to protect your turnips in the event of a late frost.

USDA Zone Info for New Castle

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in New Castle

You may be interested in your other planting guides for New Castle.