Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By using the USDA zone info for Glendale Heights you will be able to determine when you can plant turnips.

Planting Calendar for Turnips

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

You really shouldn't plant turnips until after the last frost has passed because they require warm weather.

The earliest that you can plant turnips in Glendale Heights 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. Any later than that and your turnips may not have a chance to fully mature. You can get started a few weeks earlier by starting your turnips indoors.

Last Frost Date

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

Since the USDA zone info for Glendale Heights is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Glendale Heights you get surprised by a frost after April 15 so just be sure to be ready to protect your turnips in the event of a late frost.

USDA Zone Info for Glendale Heights

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 Glendale Heights

You may be interested in your other planting guides for Glendale Heights.