One of the best tools that you have as gardeners to help us estimate 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.

You will be able to estimate when it's the best time to plant turnips by checking out the USDA zone info for Zone 1b.

Planting Calendar for Turnips

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

You can not plant turnips until after all chance of frost has passed because they require warm weather.

The earliest that you can plant turnips in Zone 1b is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant turnips and expect a good harvest is probably July. If you wait any later than that and your turnips may not have a chance to grow to maturity. You can get started a little bit earlier by starting your turnips indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on June 15 in Zone 1b. In the coldest months of winter you should expect an average low temperature of -55°F.

Remember that USDA zone info for Zone 1b is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Zone 1b it frosts late in the year after June 15 be ready to protect your turnips in the event of a surprise late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)	June 15
Average Date of First Frost (fall)	July 15
Lowest Expected Low	-55°F
Highest Expected Low	-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in your other planting guides for Zone 1b.