One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. 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 Rolling Meadows you will be able to figure out when to plant liatris.

Planting Calendar for Liatris

Frost tolerance for liatris:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since liatris do well in cold you can plant them a lot earlier in the year than other plants that might not handle the cold.

The earliest that you can plant liatris in Rolling Meadows is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant liatris and expect a good harvest is probably September. If you wait any later than that and your liatris may not have a chance to fully mature. Starting your liatris indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Remember that USDA zone info for Rolling Meadows is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Rolling Meadows it frosts late in the year after April 15 so be sure to be ready to cover your liatris in the event of one of those late frosts.

USDA Zone Info for Rolling Meadows

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 Rolling Meadows

You may be interested in your other planting guides for Rolling Meadows.