Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In La Grange Park you can estimate when you can plant liatris by using the USDA zone info.

Planting Calendar for Liatris

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

You can plant liatris a lot earlier in the year because they do well in cold.

The earliest that you can plant liatris in La Grange Park 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. Any later than that and your liatris may not have a chance to fully mature. If you are starting your liatris indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in La Grange Park. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for La Grange Park is an average the actual date of last frost can change quite a bit from year to year. Half of the time in La Grange Park it frosts late in the year after April 15 so just be sure to be ready to protect your liatris if you have a surprise late frost.

USDA Zone Info for La Grange Park

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 La Grange Park

You may be interested in your other planting guides for La Grange Park.