One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Tulsa you can determine when it's the best time to plant turnips by using the USDA zone info.

Planting Calendar for Turnips

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

You should not plant turnips until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant turnips in Tulsa 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. You probably don't want to wait any later than that or else your turnips may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your turnips indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Tulsa. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Tulsa is not always accurate the actual date of last frost changes from year to year. Since half of the time in Tulsa last frost occurs after April 15 be ready to cover your turnips in the event of a late frost.

USDA Zone Info for Tulsa

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 Tulsa

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